Does anyone in here have any information or diagnostic manuals on how to diagnose EGR malfunction on the later 90-92 Speed Density cars? Thanks.

 

Well I can tell you this , have you put a flowmaster on your car , or any exhuast modifications, the problem is the car flows to good because these cars use a negative backpreasure egr valve , basically it needs a certain amount of backpresure from the exhuast , if they dont they throw code 32 , I prooved this by removing my flowmaster and installed a 20$ muffler and i havent had a problem for over a year now. Supposedly you can convert them to a positive presure egr valve , I havent really looked into this yet.

Pino