code 44 lean
Thread Starter
Instructor
Joined: May 2005
Posts: 234
Likes: 0
From: sidney ohio
code 44 lean
ok i know theirs a **** load of threads on this but cant find similiar conditions.
im pulling a code 44 on a stock l98 tpi, conditions are that i can smell fuel "rich" rough idle stumbling like it struggling and sometimes want to hunt for idlebetween 500 and 800 rpms "varies" when warmed up it dosent hunt for idle to often but still runs rough. wot it runs great, any ideas would help...
im pulling a code 44 on a stock l98 tpi, conditions are that i can smell fuel "rich" rough idle stumbling like it struggling and sometimes want to hunt for idlebetween 500 and 800 rpms "varies" when warmed up it dosent hunt for idle to often but still runs rough. wot it runs great, any ideas would help...
Thread Starter
Instructor
Joined: May 2005
Posts: 234
Likes: 0
From: sidney ohio
ok i pulled the o2 and its covered in soot black and grey i kinda doubt it can detect anything, and it smells like its running rich not lean "i smell gas" does any one think this would cause a erratic type of idle...
Pro
Joined: Jun 2004
Posts: 520
Likes: 2
From: Mandeville, LA / Clemson, SC
I've been going through the same exact problem on my 94 LT1. I got the code 44 (left O2 lean). When I datalogged it the car ran fine for a little while then the O2 started reading a constant voltage and the car ran horrible until it threw a code and went into open loop again. I've already gone through 3 O2s. Someone suggested oil contamination. And it makes since because there was oil on the O2 wires and they would foul out every couple of months. They also said that O2 need a reference air sample and actually breath through the wiring and oil could block it.
I know it’s a diff motor and I'm not really up on the L98s. I did have the same exact problem, the car was running rich and the O2 had soot all over it. I replaced mine and made sure no oil could get on it again and it has been running fine. (This was just a couple of weeks ago).
Good luck!!
I know it’s a diff motor and I'm not really up on the L98s. I did have the same exact problem, the car was running rich and the O2 had soot all over it. I replaced mine and made sure no oil could get on it again and it has been running fine. (This was just a couple of weeks ago).
Good luck!!
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
If you haven't resolved the issue, pinch the air pump hoses to the headers while monitoring Block Learn. If the numbers go down, the switching solenoid is bad or hooked up backwards (did you have it apart for any reason?).
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Thread Starter
Instructor
Joined: May 2005
Posts: 234
Likes: 0
From: sidney ohio
actually the switching solenoid isnt their any more, the electrical connector is there but the solenoid is gone????? i caped the vac line and the inerts to the valve until i can find the solenoid,,, any one know where i can get one/// buy one? and i still having the same idle problems any suggestions
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Dealer, but it's about $200 to $300. Can't imagine why someone would take it off and not plug up the lines - it wouldn't work very well with the air pump pushing air into the headers at all times. Does it still have an air pump?
