Yea the tps.. but dont move it too much just ever so slightly if u crank it open it tells the pcm its open add fuel.. that's am easy test to see If you need more fuel... also try the iac motor unscrew it so you can turn the threads by hand.. try unscrewing it all the way thus allowing more air thru the throttlebody... you should be anlr to completly remove it from the throttlebody and still maintain idle.. in fact your idle should increase
At a low rpm the when moving the TPS the engine wants to die. Above 1500 the car runs a lot smoother.
I did this until the car warmed up and when it warms up it will idle a lot better and once the engine was warm I would open the TPS and the car would cut RPM's for a split second then maintain where it was.
Thats definitly a sign of running lean.. maybe ur pump isnt flowing enough fuel, if you take the vac line off the fpr. It will increase to the highest pressure. Just make sure to cap off the end of the vac line so you don't have a vac leak.
Thats definitly a sign of running lean.. maybe ur pump isnt flowing enough fuel, if you take the vac line off the fpr. It will increase to the highest pressure. Just make sure to cap off the end of the vac line so you don't have a vac leak.
Unplugged the Vac. line and capped it and although I haven't don't a complete cold start it did seem to run better but now almost to RICH. I have a very little exhaust leak and it is backfiring through the exhaust now when revving up and letting completely off. It did this before but not as bad as it does it with the line unplugged. Haven't checked fuel pressure.
Brand new pump so in theory it should be flowing enough fuel. Also the car runs a lot better warm than when cold.
Will be doing a complete cold start tomorrow morning.
that would be from running at a very high fuel pressure at idle .. if this is the case and it runs now, I would say your fpr is going bad. I believe they sell a rebuild kit for them that's fairly cheap. But definitly check it in the morning when its cold.. I hope this helps
My TPS with not touching throttle is .94 volts 9.9% open when not even touching the throttle. WOT is 3.96 volts 84.2% open at WOT. MAT (intake temp) 92 F. BLM hasn't moved from 128 ever. INT 128 always as well. RPM's look accurate compared to gauge. IAC seems accurate as well although moving around quite a bit. MAP reading around 1.1 at idle. Coolant temp going up very slowly. It says 30 degrees advance. O2 Sensor between .22 and .50
While on the interstate going 63 mph the BLM's were 150 and the INT's were 198 at highest. My previous post about BLM staying 128 and INT staying 128 is inaccurate! My BLM's got to 130 earlier and my INT were all over the place when I gave it any more than quarter throttle.
The car starts to run normal at a temp. around 105 F. I think my thermostat is bad because I never reach even 200 F while driving in the city. A 15 min drive 10 min city and 5 min interstate (last part of drive interstate) and then about a half mile off the interstate My temp. never got above 175 F.
TPS is now only 8.9 percent at not touching the throttle. I reset the Idle. Is it bad that my TPS doesn't open to 100% or closer?
IAC is moving a lot. I've seen numbers from 40 to 255. Which is a good thing but from while stopped at a stop light with the car idling the IAC counts move a lot, from lower 100's to 255 and then back down and up all over the place. I just do not know if this is normal. The warmer my car is the better it runs.
I have never seen my O2 sensor read .6 or higher. This basically says I am running very lean. Also I have now seen numbers as low as .1XX.
My ADVANCE at a stop says it is 18. I know I set my car at 10 though. I will re-time it and check again with WinALDL but the distributor has not moved.
Well my BLM's are at 130 when not touching the throttle and when touching the throttle at all the BLM's go to 150. The INT's stay 128 the whole time now.
Don't see where you put an o2 sensor in. you can check your o2 by spraying fuel into the throttle. enough fuel should bring voltage up to .9 v on the scan tool. pulling a vacuum hose off (like the pcv or brake booster hose) should drop voltage to at least .2 v.
Whenever I accelerate the 02 reads .2 to around low fours and never goes rich when steady speed 02 will bounce from no more than .55 but down to .2. While anytime I am onnthe gas my blms are 150.
