LT1/LT4 Tech 1993-1997

I posted a while ago about my 1996 Z28 A4

Old Apr 4, 2010 | 09:06 PM
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Default I posted a while ago about my 1996 Z28 A4

is it possible for the computer to lose its factory tune? it sounds like what it does when you upgrade the cam and heads and not get a tune. plus it runs like crap.
 
Old Apr 4, 2010 | 09:16 PM
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check all your wireing. easy to get a plug wire crossed or forget a sensor. check the knock sensor make sure it didnt get unplugged or damaged. how bad is it, it takes a couple starts and drives to let it learn.
 
Old Apr 4, 2010 | 11:15 PM
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Originally Posted by craby
check all your wireing. easy to get a plug wire crossed or forget a sensor. check the knock sensor make sure it didnt get unplugged or damaged. how bad is it, it takes a couple starts and drives to let it learn.
if you find my other post that will say how it drives. it all started when i hit a pot hole. where is the knock sensor? and what other sensors could be unplugged?
 
Old Apr 5, 2010 | 06:49 AM
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I just rebuilt my motor and my knock sensor really messed up my engine. The knock sensor is on the passenger side of the engine under the headers. You will have to get under the car to see it. Here is a picture of one. http://shbox.com/1/ks.jpg. Check all the wiring and such. Also, if there is any way for you to hook up a laptop just check your spark retarding and if your knock sensor is not working right it will retard the engine really bad.
 
Old Apr 10, 2010 | 01:00 AM
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so i changed the knock sensor and it still doesnt run right. it bogs at low rpms on take and at wot it wont shift.
 
Old Apr 10, 2010 | 09:03 AM
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have u had it scanned for trouble codes?
 
Old Apr 10, 2010 | 03:28 PM
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Originally Posted by craby
have u had it scanned for trouble codes?
yes it throws the same codes it always has even when it ran normal.
the engine isnt the original to the car im pretty sure because it looks nothing like the lt1 out of a camaro or firebird. if that makes sense, like i cant even find where you check the fuel pressure or anything. i can take a picture of it. its not very pretty under the hood.
 
Old Apr 10, 2010 | 05:41 PM
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fuel pressure fitting on the 96 should be in back on the passenger side,, yep way back there were its hard to get to. if u follow the fuel line as it crosses to the passenger side (in back,were the fuel comes in, not front) u should find it just before the rail on that side. picture or three would be good, never turn down one to look at.
 
Old Apr 10, 2010 | 10:43 PM
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Originally Posted by craby
fuel pressure fitting on the 96 should be in back on the passenger side,, yep way back there were its hard to get to. if u follow the fuel line as it crosses to the passenger side (in back,were the fuel comes in, not front) u should find it just before the rail on that side. picture or three would be good, never turn down one to look at.
ill take some pictures of it tomorrow. its ugly though. i wish i could find an ls1 and swap it, or if i want to dream big ls2.
 
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