Holley sniper tps not working I spend and hour and a half with a meter checking every single wire and connection I made. The 543-111 I'm told by Holley, is specifically not for the QuadraJet, though I saw one post where with shims it worked. In doing some internet searching, I've read that Holley does not recommend tapping into the TPS wires to pull a signal for the stand-alone transmission controller. 200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/. 3% or whatever. When you boot up the system, the 3. It Holley Dual Sync Distributor Timing Control 199R11369 Date: 7-28-17 . 623" lift 114° LSA H/R camshaft, Trick Flow R-Series Hello, I have a built 410 FE with low miles in my '74 F-350. As soon as a I start the engine, the TPS goes to 2%. Sometimes the TPS can be a little noisy or inconsistent in a certain region. I like the idea of the Sniper doing it all if possible. I'm putting a Sniper setup on a new crate GM SBC 350. Yesterday, I replaced it with a Standard Motor Products brand since it was readily available here in town. 623" lift 114° LSA H/R camshaft, Trick Flow R-Series Verify by cycling the key off/on. the TPS on either Pro-Jection or Pro-Jection #4 TBIs, you must re-use the original TPS retaining screws. We actually bought two at that time. Chris Myer 800-880-0960 [email With the exception of progressive linkage enabled on one and not the other. Slowly depress the throttle pedal to wide open. Spoke with Holley to order a TPS which is 543-111, this as many know is the wrong one. After I installed the new TPS, I cranked it and had a puff of white smoke from the tailpipes. There is logic in the Sniper to kick the system out of Closed Loop when there is a detected TPS RoC. I've used the TCI 377450 in tandem with my Sniper controlling a 4L80E with success. I installed the Sniper in my truck March of 2019. 11-12-2018, 10:30 AM. TPS RoC is a Rate of Change percent. Theoretically the TPS can be mounted in any position as long as you're able to get to WOT which shouldn't be an issue. Pink wire hooked up properly. Hello. If not, try repositioning the TPS on the throttle body to zero the TPS %. Holley 543-111 TPS or Standard Motor Products TH191 TPS. When your TPS is at . Join Date: Dec 2009; Posts: 36802; Share Tweet #2. I'll have limited time on the Holley Forum during this time frame. Sometimes the TPS will stay at 0% the RPM will increase as you accelerate, but the TPS will read 0%. No prime and no fuel coming from your questions may or may not be answered by Holley personnel. Sniper EFI Tuning & Tech. I can't reverse the problem even doing the Wizard, I'm working on getting the AE just right. When I try starting the engine, it turns over like it should, but no gas spraying in the intake. Holley 550-850 2300 Sniper EFI. Please be aware that this is a community forum. Other Dr Google searches noted that the Holley TPS Are you sharing the Sniper TPS signal with some other device/system? This can potential be electrical noise/interference, so check for any high amp or high voltage wiring running near the TPS on the Sniper throttle body. Rapid acceleration will kick you out of Closed Loop so if the table is off, the system will not add or remove fuel. It's slotted, so install it in the same position. By integrating this distributor, Hiya folks. 2) TPS - replaced with TH191 as suggested on one of the stickies. I don't think that the issue is with the return. The Hyperspark Distributor is designed to work seamlessly with Holley Sniper EFI systems. Since the instructions say "recommend" and not absolutely cannot, I'm curious if any have tried tapping into the TPS signal for a transmission controller and if it has been successful or not. The TPS is not erratic after the new one was installed. Since this is a QuadraJet, the TPS is not slotted like the regular I reviewed the post history and I don't think that moving the TPS has been mentioned. Recheck the voltmeter reading when the screws are tight to make sure the adjustment did not change. Now look through your config tables. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley but after giving it throttle for the first time, it still only returns to 1%. Sniper QuadraJet, TPS is beginning to fail. The fact that Holley released new firmware for the Sniper EFI System recently slipped past most But as long as you correctly identify the secondary tip-in point it should work great for you. A few questions: 1) The numbers for TPS/MAP Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Hello everyone. So zero TPS isn't always zero. 5" TSLCD, and therefore it may not work properly with the Sniper. May God's grace bless you in the Lord Jesus Christ. In the last year I have been struggling to fix a consistent hesitation I get under acceleration after it warms up. Good morning. I have a '68 GTO, Pontiac 461 Stroker engine that was recently build and dynoed by Kauffman Racing. Can’t find it with a Google search. 5" TSLCD is currently not reading the SD card, you may not be able to update the 3. After this starts, it also develops a problem Just finished installing my Sniper and noticed that my TPS starts out 77% on power up. " My IAC at a hot idle is at 4% and I have a smooth idle, I don't really see the TPS at 1% causing issues, but I don't know that it isn't and would prefer it at 0%. Well, another one is going. The Hmm. To do this, open up the Initial Startup gauge screen that was used in Yes, replace the TPS sensor - LINK. Turn key on and it reads 0%. forum. Everything checks TPS issues??Well, our EFI Tech Expert, Scott Evans is here with the answer!💪We absolutely love helping folks be a success with their EFI Systems! There is n Tighten the TPS mounting screws with the sensor in this position. Author: Originally Posted by Danny Cabral Sniper EFI Replacement Sensors - Auto Parts Store CTS Sensor: Standard Motor Products TX3 TPS Sensor: Standard Motor Products TH191 IAC Motor: Standard Motor Products AC416 WBO2 Sensor: Bosch 17025, 0258017025 (LINK/LINK/LINK) (The Sniper EFI 2 bar MAP sensor is internal with the ECU. Loosen the TPS screws and move it CW or CCW to move it as far away from the current position as possible. Tried it after starting, same 0% TPS. Is there a better TPS for this than the junk provided by Holley? I know this TPS is only used on the QuadraJet and the 4500 units. The primary cause of the lack of Closed Loop is that your TPS signal is somewhat noisy and as a result you have a very high rate of TPS RoC%. 55 rear end. Another cause of a 1% stuck reading on the TPS, if it's not mechanical is to loosen and rotate the TPS to a new position. Then it died and stuck to 0%. It works great until it hangs 11% then you have to start over again. I'm working out the kinks on my new combo. This all started when I had not driven the truck for a few months and went to a friend's house down the street, it ran great. It will show you where your engine and Sniper are working within the tables. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. First replace the TPS sensor. I about at my wits' end with it. 05 will be interpreted as a RoC and you will get kicked out of Closed Loop. If I rotate it past 100%, it displays 0% then it stays on 1% when released until I power it off and it resets to 0%. 91 gears and a Tru-Track, UMI suspension with Konis, big brakes, This working good so far? I have a Sniper 1 and plan on swapping from a TH350 to a 4L60E, and curious if it’s better to use the Sniper controller or the US Shift setup. Sometimes there can be a noisy spot on the TPS and moving it away from its current position will give a more consistent zero reading. The first thing to try is a next, known good working TPS sensor. Tags: None. If none of this works, replace the TPS sensor. 0 to 1. If replacing the TPS, the TPS sensor is located at the end of the primary throttle shaft, opposite The TPS is just a switch and it will not cause the engine to (or allow it to ingest more air) increase in RPM if it's stuck at or reads 100% on its own. I rotate the TPS slowly and the TPS displays numbers up to 100% and when released it returns to 0%. When I start the truck the RPM will shoot up to +2000 and then start to bounce from 1500-2200 RPM. I'm trying to balance Blanking values: Good response with a rapid throttle opening Vs never going Closed Loop or Learn. So after that and driving it, Please be aware that this is a community forum. 3L SBF, Dart SHP 8. Sniper right front fuel injector not working. Not all steps are available to Sniper, but it does have many steps that do apply. In datalogs and on the handheld the system will round up the TPS number. No extra return spring, just the standard Sniper EFI setup. 2 block, Eagle 3. Just spent ages trying to find the Holley part number for the TPS on my Sniper QuadraJet. If it does not, verify your throttle Car gauges light up but no power to sniper display nothing works. The engine ran with the HyperSpark and 550-510 Sniper on the dyno, and ran great from the builder. I have a Dart Pro1 heads, Holley Sniper EFI with HyperSpark, Comp Cams, NOS Cheater plate with Powershot solenoids. Other than getting the linkage adjusted properly, I've had zero issues with it. 623" lift 114° LSA H/R camshaft, Trick Flow R-Series Using the Holley Sniper EFI software (LINK), I initially tied my Quick 4 into the Sniper TPS circuit and although the transmission worked the noise on the TPS signal caused the Sniper to cycle the Closed Loop back & forth. 3) IAC - due to bad idling and Start Ramp up/down not working. When you shut it off it goes back to 0% and my IAC goes back to 2-6%. Can’t ring the Holley support phone number due the time difference. TPS (Throttle Position Sensor) – Should read 0. Fine-tune your ignition advance settings to match your engine’s requirements. Thus, Holley can not guarantee an answer or timing on an answer. I'm on my third replacement sensor. When I press the throttle to WOT the TPS goes to 0%. I'm new to the EFI platform. I have gas at the unit. I'm new to this forum, but this is my second time installing a Sniper setup. The TPS % was erratic and jumping all over the place. 5 speed ZF5 manual transmission with 3. Upon testing the sensors today using the Sniper Troubleshooting Guide, I noted the TPS never moved from 0% even with throttle pressed all the way. I think I got the IAC Position adjusted well, it's about 8% at idle in Park, with a warm engine. If it resets to 0 on startup (sometimes it doesn't) it quickly (within 5 minutes of driving) is between 3 & 7. Evidently, the TPS sensor can still be sending out a signal even if it's reading zero. When checking your Config File in the Holley Sniper EFI Software, first open the Config File, then from the top menu, select Datalog, then Open Data Log. The scale for TPS RoC is +/- 15, so any time the peaks go full positive or negative the system will go into Open Loop. When the throttle body is opened all the way to the stop, the TPS is only reading 91%. New install, fuel injectors This is a great time to visually inspect the overall Sniper EFI install. Ever since I got the truck it has had a really bad surging issue at idle. The system will re-zero the TPS when you start the engine again. '92 Ford Mustang GT: 385"/6. 5" TSLCD should briefly display the firmware revision that's currently in memory. Can't say for sure it'll work on your application, but if the transmission controller can interpret a 5V TPS signal, I don't see any reason why it wouldn't work. This has been over the space of 12 - 18 months, but due to being in a boat, our distance from the water, and life getting in the way, testing it out has not been that easy! The system automatically zeros the TPS with each key-on, so before starting the TPS should read zero unless there's some electrical noise riding on top of the TPS signal. Hanging at 1% throttle, give the pedal a little flick and it will return to 0. Ive been running a Holley Sniper for a about four years now. There are 4 different cars, all with Holley Sniper EFI, all worked before the update to the latest firmware version downloaded from Holley's website ECU firmware version SNIPER_0100090 the TPS works again, the WBO2 Sensor works again. Thus, Holley can not guarantee an answer or timing Don't worry about the TPS not reading above 88% right Most of the issues that people raise on this board are not Sniper problems. It's the only change. "Miracle", no, just not understanding and eventually worked it out (from a couple calls to Holley tech, but mostly from this forum). I have a QuadraJet Sniper 1 on a Mopar 360 in an old van. It has now has no preload on it. I had to run back Since the 3. Fuel pump working as it should. Holley had a lot of trouble finding the right one. Ignition timing adjustments are also important. I unbolted it from the throttle body. I tweaked the TPS sensor location a tiny bit and then everything started to work again. If I turn the key on, no engine start, the TPS reads between 0% & 1%. QuadraJet & 4500 Stealth are a unique switch not listed for sale. If I move the throttle at all it always returns to 2%. Replace the TPS sensor. I tried Sniper Throttle Positioning Sensor Failure, Symptoms & Fix. This is why your system goes into Closed Loop at moderate throttle. The IAC & TPS will settle at Working on the TPS now. Remove the air cleaner, idle the engine, manually work the throttle, and determine Nothing I did resolved the TPS issue so I called Holley Tech told me to readjust the TPS, so that is past zero at idle. Danny Cabral. I constantly have a non-zero issue. 10-26-2021, 06:14 PM. Then fuel pressure regulator needed replacing, the CTS has been replaced twice. Also, does anyone know if the Sniper screen will show speed once the transmission is controlled by the Originally Posted by Danny Cabral Sniper EFI Replacement Sensors - Auto Parts Store CTS Sensor: Standard Motor Products TX3 TPS Sensor: Standard Motor Products TH191 IAC Motor: Standard Motor Products AC416 WBO2 Sensor: Bosch 17025, 0258017025 (LINK/LINK/LINK/LINK) (The Sniper EFI 2 bar MAP sensor is internal with the ECU. 4% TPS while you are firmly holding it closed, this is a good example of shielding, grounding, and quality issues. Can’t find an email address for support on the Holley website so I can ask them. The throttle plates or IAC motor While working on my throttle linkage today, I noticed an anomaly with my TPS. Also, AE vs TPS% Correction The Holley Sniper EFI will intermittently inhibit Closed Loop at idle, Working on acceleration now and I get a lean spike during light to medium acceleration and then gets back in line once steady state is achieved, but I'm not seeing MAP or TPS RoC high enough to activate. Can’t find it by searching on the Holley website. So far I've managed to swing to both ends of that spectrum (bogging on acceleration and almost never going Closed Loop). 470" forged steel crankshaft & H-beam rods, Wiseco 4. Does your Sniper Have a mind of it's own, Stalls when cold, Stumbles at constant throttle due to TPS (Throttle Position Sensor) – Should read 0. TPS reads 0%, CTS reads 83°F, all sensors per setup instructions look good. Given the choice between something that might work and an independent solution that Danny posted, Hi, JR Hamilton. The Sniper EFI calibrates the TPS sensor at every key-on event. Rerouted the plug wires, and took care that NONE of the wiring for the Sniper touched any other electrical wire or device, and all RFI problems went away. First time I had run into that. 700R-4 ProBuilt, Moser 12-bolt with 3. 623" lift/114° LSA H/R camshaft, Trick Flow R-Series FlowTech Induction Sniper EFI Idle Setting/Throttle Blade Setting (Holley Sniper EFI Quick Start Manual): Once the engine is up to operating temperature, the idle speed can be set to what was configured in the Wizard. The TPS not being at absolute zero is totally normal from my experience. 5, for example, a change of . After installing the engine, Sniper, HyperSpark, and wiring, in the car, I'm experiencing a No Data Issue. I recently bought a truck that has a 350 Small Block and a Holley EFI Sniper 2. TPS issues??Well, our EFI Tech Expert, Scott Evans is here with the answer!💪We absolutely love helping folks be a success with their EFI Systems! There is n For example if you're holding the TPS in your hand fully closed (not attached to the engine), firmly closed in your hand and the TPS% is jumpy jumping around 0. And aside from what appears to be a noisy TPS is that your TPS RoC Blanking is only set to 4. I'm happy with a lot of the system, but I'm so frustrated with the TPS. I have had a few minor issues with it since then, until about a month ago. NOTICE: I'm on vacation from Saturday July 20, until Tuesday July 30. Holley EFI; Sniper EFI; If this is your first visit, IAC plug was slightly damaged, but working OK. It should read between 85% and 100% at wide open throttle. Administrator. Thanks for the help. If replacing the TPS, the TPS sensor is located at the end of the primary throttle shaft, opposite end of the throttle lever. 200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration . My Sniper TPS randomly hangs at 11% & IAC at 20% after driving it for a while. Recently I added one of those filter element top K&N air filter lids and VERY LIGHTLY sprayed the K&N juice on the outside, I'm talking lightly. THROTTLE POSITION SENSOR – SERVICE PART INSTALLATION AND ADJUSTMENT INSTRUCTIONS – 199R9717 Congratulations on your purchase of the Holley TPS (Throttle Position Sensor)! Holley Performance Products cannot and will not be responsible Ensure your TPS is calibrated correctly to avoid stalling or surging. I went through all the troubleshooting guide and everything checked out good. No throttle it goes to 91%. Originally Posted by Danny Cabral Sniper EFI Replacement Sensors - Auto Parts Store CTS Sensor: Standard Motor Products TX3 TPS Sensor: Standard Motor Products TH191 IAC Motor: Standard Motor Products AC416 WBO2 Sensor: Bosch 17025, 0258017025 (LINK/LINK/LINK) (The Sniper EFI 2 bar MAP sensor is internal with the ECU. It’ll show “0” on the handheld, but can really be at 0.
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