Running real rich, seems like its running on 3cyl

[tta1240]

Just installed left hand header gasket. after i was done it started runnig rough and real rich. Checked all vacum lines and they all looked ok and my car eqiuped with a translator pro. Here are all the readout from the power logger at idle:
ECM: 13.4:1
MAF: 9.2G/S
LV8: 38 G/C
TPS: .38v
RPM: 875
EGR: 0%
WG: 0%
Speed: 0
IAC: 67 CTs
Prog. Idle: 900
WB AFR: 16.55:1
MAP: 47.50 kpa
EGT: 33 degf
ATs4: 100.5
V(5): 0

INT:128
BLM: 128
Code 45 oxygen rich
Has a wide band o2 censor

 

[TurboDave]

Just installed left hand header gasket. after i was done it started runnig rough and real rich. Checked all vacum lines and they all looked ok and my car eqiuped with a translator pro. Here are all the readout from the power logger at idle:
ECM: 13.4:1
MAF: 9.2G/S
LV8: 38 G/C
TPS: .38v
RPM: 875
EGR: 0%
WG: 0%
Speed: 0
IAC: 67 CTs
Prog. Idle: 900
WB AFR: 16.55:1
MAP: 47.50 kpa
EGT: 33 degf
ATs4: 100.5
V(5): 0

INT:128
BLM: 128
Code 45 oxygen rich
Has a wide band o2 censor

I'm guessing that since you installed a header gasket (where one is not designed to be used), that you probably have induced a leak somewhere in the gasket area. This is assuming that this problem just cropped up after your gasket install.

Your WB A/F ratio is extremely lean at 16.55:1, it's no wonder the car is running so crappy. 14.7 is as lean as you would want to see it at idle, and usually richer is a little better, like 14.0


What chip are you running????? TT? IF so, Int and Blm are going to be useless since that chip runs open loop idle and locks both values.
You must also have the stock O2 in place (which is OK, I do it too) which is giving you the code 45?

 

[tta1240]

problem solved with a set of new plugs, but the car still seems to be running rich and i can smell gas in the exhaust.my car has a extender pro chip.

 

[TurboDave]

What is your WBO2 telling you?

 

[tta1240]

when i get home from work i will get the readings.
thanks for the help turbo dave
scot w said you were the man

 

[tta1240]

ok wb02 is now bouncing between 13:78 to 12:30 but engine light still comes on with a code 45 for 02 running rich.

 

[scot w.]

ok wb02 is now bouncing between 13:78 to 12:30 but engine light still comes on with a code 45 for 02 running rich.

You may have to disconnect the Orange ECM wire by the battery for a couple seconds and re-connect it. That resets the codes.

 

[tta1240]

hey scot how you been.i cleared the code but it comes back.

 

[TurboBuRick]

Are you running PT tracking? If so make sure you in full time open loop. Whenever you reset the ecm, you will need to reset parrameter 12 to 8 in the chip if your using PTT.