Closed loop issues

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Apr 20, 2008 | 11:02 PM

1995ta383

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From: Minnesota

Closed loop issues

What would cause my car to go lean only when it is in closed loop. I never had any problems for 9 months then I welded a little on the body, forgot to disconnect the battery. Now im having this problem. I dont know if the welding had anything to do with it but maybe. And if so what could this have screwed up. Any help would be appreciated.

Apr 21, 2008 | 03:03 PM

MEAN LT1

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From: jacksonville,FL

How lean is it getting?. Are you getting yuor data from a wide band or Datamaster? What bank is it showing lean on?.

Apr 22, 2008 | 10:44 AM

1995ta383

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From: Minnesota

its going 16:0 and thats from my wideband

Apr 22, 2008 | 10:48 AM

C_Rules

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From: NYC

if you have datamaster also check what your fuel trims look like. they should be close to 128.

Apr 23, 2008 | 01:16 PM

1995ta383

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From: Minnesota

I dont have a datamaster but I do have an autoxray scanner but it dosent show the fuel trim on my scanner. do you guys think my tune got screwed up from welding on the body or something.