Running Rich, Jerking At Low Rpms And Surging Idle

[nogoodgt]

probably but i got 12v in my pin 1 any ideas are well come ill try anything at this point

 

[nogoodgt]

well o2s are reading lean when its not.

 

[jrichker]

well o2s are reading lean when its not.

I looked at your last code dump and I didn't see a code 41/91 which would have been an O2 sensor problem.
Did I miss something since then?
Did you actually measure the voltage or is this what you are thinking?

 

[Noobz347]

@nogoodgt


I've been silent for a while because I think that you are now in the best hands available for troubleshooting this issue.

I should mention though (so that your problem can be resolved as quickly as it can), that Jrichker has a VERY systematic approach to troubleshooting.

I recommend that you follow the order in which he does things and provide the best possible answers to his questions. If you have a thought, you should express it as thought so that Jr can follow what's going on.

Best of luck with finding and fixing your issues. Holler at me if you need something.

 

[nogoodgt]

I looked at your last code dump and I didn't see a code 41/91 which would have been an O2 sensor problem.
Did I miss something since then?
Did you actually measure the voltage or is this what you are thinking?

sry yes got 41/91 and 21 car was at 160/180 during the test with a 160 thermostat also got 12 and 13

 

[nogoodgt]

And i got some fuel pump in open circuit code and cant remember the number all koer codes. Koeo no more code 11 but every thing else is the same from last time

 

[jrichker]

For purposes of clarity, please list the parts you have replaced and the codes you are getting at this time. That will help reduce any misunderstanding and present a clear picture of what is happening now.

 

[nogoodgt]

Replaced TPS & IAC
CODES
koeo
31
85
cant remember if i still have 15

Koer
41
91
21
12
13
High speed fuel pump relay circuit open don't remember what code that was
Fuel pump secondary circuit failure and don't remember the code

 

[nogoodgt]

also put a stock maf on to try and know change

 

[nogoodgt]

"NO" change sorry

 

[nogoodgt]

ok the 2 i didint remember on koer is 95/96

 

[nogoodgt]

i got my hands on a breakout box and hegos are reading 89-1.1v at idle. tps is set at idle good all grounds have 00.3 resistance.
both mafs i have the stock one and the one that says its pro-m 75mm 30c read 1.2v at idle from what iv seen is high. But now that i have every possible thing to check stuff where should i go from here

 

[nogoodgt]

anyone have a idea. bump

 

[nogoodgt]

well im going to say its the maf the only sensor that makes a diff when you unplug it is the maf