Codes 48, 64 & 34......
Thread Starter
Banned
Joined: Dec 2003
Posts: 299
From: Tri state area
Originally posted by Injuneer
Just because the code says the O2 sensor is readking "lean" doesn't mean that there is a problem with the sensor. It might acutally be running lean.... large vacuum leak, low fuel pressure.... or it might be a "false" lean.... exhaust leak before the O2 sensor, misfires, etc.
Since you have posted scan data elsewhere, why not use your scanner to look at the long term fuel corrections in as many of the 16 operating "cells" as you can. Somewhere in there, it is likely you have a cell that is maxed out at 160, and still isn't adding enough fuel to correct what the PCM "thinks" is a lean condition.
You also need to look at the long term corrections for both banks... if only one bank is running lean, it tells you its a problem that only affects that side. If both banks are running lean, its a problem that is affecting both sides.
Just because the code says the O2 sensor is readking "lean" doesn't mean that there is a problem with the sensor. It might acutally be running lean.... large vacuum leak, low fuel pressure.... or it might be a "false" lean.... exhaust leak before the O2 sensor, misfires, etc.
Since you have posted scan data elsewhere, why not use your scanner to look at the long term fuel corrections in as many of the 16 operating "cells" as you can. Somewhere in there, it is likely you have a cell that is maxed out at 160, and still isn't adding enough fuel to correct what the PCM "thinks" is a lean condition.
You also need to look at the long term corrections for both banks... if only one bank is running lean, it tells you its a problem that only affects that side. If both banks are running lean, its a problem that is affecting both sides.
Thread Starter
Banned
Joined: Dec 2003
Posts: 299
From: Tri state area
Originally posted by Skedaddle
The guy spends all that time trying to help you, and you call it "junk"?
The guy spends all that time trying to help you, and you call it "junk"?
You misunderstood. I didn't mean literally junk. I was referring to the readings and all from Datamaster. I really don't know what to make of all of it is what I was saying. Thanks for your helpful post.
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Joined: Apr 2003
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Thanks alot!
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Joined: Aug 2003
Posts: 564
From: dallas, tx.
alot of good junk in there Injuneer.
Question:
If you are getting knock retard while going down the track using high octance fuel and spraying nitrous..........
what do you do to correct this?
adjust timing
delete the knock sensor........
or would you have higher power tuning the engine until there is no knock detected??????????????
or none of the above?
Question:
If you are getting knock retard while going down the track using high octance fuel and spraying nitrous..........
what do you do to correct this?
adjust timing
delete the knock sensor........
or would you have higher power tuning the engine until there is no knock detected??????????????
or none of the above?
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