V6Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.
Welcome to ThirdGen.org!
Welcome to ThirdGen.org.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!
The TPS is NON-adjustable stock. If you look for a post a few weeks back that I posted with pictures, you'll see how to modify your TPS to make it adjustable. If I can find the thread, I'll post a link, as I can't post the same pic on more than one thread.
__________________ Dan V.
Project is on hold...
The H1L-2 Raven:
1987 Pontiac Firebird, T-top
Bone Stock Except for the Following:
1991 VIN T engine, harness and ECM. Yes, I have VATS! ('730 harness is out for inspections due to problems, running on stock '302 system for now )
1984 Base Taillights
Overhead console from an 86 Berlinetta
90-92 Z/28 rear deck spoiler with HMSL delete
Eclipse CD-5435 MP3/WMA Headunit, 50Wx4 with iPC-106 iPod controller
Sony 4x6" 120W Front Speakers
Clarion 220W 3-way 6x9 Rear Speakers
Distinct (Crossfire) DVC 12" subs with Distinct 700W amp in prefab 82-92 F-body hatch box, 130+ dB (when working right)
Factory 700R4 replaced with 85 T-5 5-Speed manual trans, .76:1 OD.
Engine: 3.1L LH0 with off-the shelf air intake and a Cherry Bomb 2.25" Muffler.
MaverickH1L, how adjustable does this make the TPS, I found the post you were referring to. My car has what i would call a dead spot in it when you get in the gas gently and the car is rolling. The cap, rotor, wires, plugs, coil, and control module have all been replaced on the car. I haven't ever replaced the pick-up coil in the distributor. Is this a fault in the TPS or some other sensor on the car?
__________________
1992 Camaro RS 3.1L 700R4
Mods: TPI dual snorkle intake, drilled thermostat, throttle body coolant by-pass, 16" Z28 wheels with 245/50/16 Cooper Cobra GTH radials, mild shift kit, vette shift servo , cat delete, flowmaster 80 series muffler
It is possible that the TPS has a dead spot. I've seen it happen. The TPS is what is known as a rheostat, a coil of wire attached to a known voltage with ground at the other end that has a varying resistance along its length, and a "wiper" that moves along the coil to send a varying voltage to the ECM. It's possible that part of the resistance wire has a break and the wiper doesn't sense any voltage at that point.
You can relocate the IAT, but I don't think that is your problem. I had been running mine outside of my intake system for over a year without problems. All that does is to give the ECM the ambient air temp so it can fine tune the ignition and fuel tables.
__________________ Dan V.
Project is on hold...
The H1L-2 Raven:
1987 Pontiac Firebird, T-top
Bone Stock Except for the Following:
1991 VIN T engine, harness and ECM. Yes, I have VATS! ('730 harness is out for inspections due to problems, running on stock '302 system for now )
1984 Base Taillights
Overhead console from an 86 Berlinetta
90-92 Z/28 rear deck spoiler with HMSL delete
Eclipse CD-5435 MP3/WMA Headunit, 50Wx4 with iPC-106 iPod controller
Sony 4x6" 120W Front Speakers
Clarion 220W 3-way 6x9 Rear Speakers
Distinct (Crossfire) DVC 12" subs with Distinct 700W amp in prefab 82-92 F-body hatch box, 130+ dB (when working right)
Factory 700R4 replaced with 85 T-5 5-Speed manual trans, .76:1 OD.
Engine: 3.1L LH0 with off-the shelf air intake and a Cherry Bomb 2.25" Muffler.
I haven't put the thought of it having a dead spot out of the question. It only does it or is noticable when you accelerate from a slow cruise. It may be passing that point in the TPS so fast it doesn't register upon hard acceleration. The car is currently at my parents house and i don't have access to it since i am at school. In a few weeks i'm going home to pic it up and i'm trying to get a game plan together to tackle the fer hiccups it has right now.
__________________
1992 Camaro RS 3.1L 700R4
Mods: TPI dual snorkle intake, drilled thermostat, throttle body coolant by-pass, 16" Z28 wheels with 245/50/16 Cooper Cobra GTH radials, mild shift kit, vette shift servo , cat delete, flowmaster 80 series muffler
You don't necessarily need to get a new one, either. Depending on the yard, you can nab one from an FWD car or an F-body V6 (or V8, not sure?) between the 88 and 95.5 model years. Heck, some places might sell a sensor "set" like my fav yard did a couple years ago with the TPS, IAC, and CTS all in a bag. As long as it works, does it matter how much you pay for it?
(If you do go to a yard, DO NOT try to get one from a 3x00 engine as these are different)
Thanks for the info man. I'll have to call around and see what all i can round up.
One other thing the car was doing the last time i started it up, when you start it for the first time it struggles and idle really low like its wanting to flood out. After the inital start the car is fine until it sits for an extended period of time.
Since i have owned the car i have replaced the heater core, speed sensor, removed the cat, fuel pump, did the major tune up, rebuilt the trans at 212,xxx, went through a couple control modules and trans mounts. The car now has around 23x,xxx miles on it and to my knowledge everything else is orignal to the car.
__________________
1992 Camaro RS 3.1L 700R4
Mods: TPI dual snorkle intake, drilled thermostat, throttle body coolant by-pass, 16" Z28 wheels with 245/50/16 Cooper Cobra GTH radials, mild shift kit, vette shift servo , cat delete, flowmaster 80 series muffler
I'd do a fuel pressure check. Seems like you have either a leaking injector or 2 (or more) or you have a sticking EGR pintle causing the rough start and run until it warms up. The fuel system should hold it's base fuel pressure (mine happens to be 43 PSI, but I've read that it can be as high as 47) for 20 minutes after the system is pressurized and the pump shuts off (engine not running, of course).
:edit: IAC motor could be getting a little sluggish as well. When was the last time you cleaned it?
, cat delete, flowmaster 80 series muffler 
)
