I know this has been covered to death, but I've read all threads pertaining to EGR and still no clue how to solve my problem. I have a P1400 code which refers to EGR sylenoid valve I believe. Can someone point me in the right direction? Thanks for any help.

 

go to the 4th gen forum. This forum is for "All Motor Advanced Performance. Talk about Engine Swaps, Internal Engine work. Not your basic Y pipe and Intake Information."

 

I know I just hate the 4th Gen forum now. It's really childish at times. It seems like all the knowledgable people came here.

 

Hate to tell you, but search, there are some good threads about it in the 4th gen forum.

 

Google is thy friend....

P1400: Differential Pressure Feedback Electronic Sensor circuit Low Voltage

A differential pressure sensor is connected to a pressure source on both sides of the diaphragm and is therefore calibrated to accurately measure pressure (diaphragm movement) in both directions. It’s typically used to measure flow. For instance,
the Differential Pressure Feedback EGR (DPFE) sensor measures the flow through the EGR system by measuring pressure in the tube on both sides of an orifice. As gas flows through an orifice, pressure measured close to the downstream side will be
lower than the upstream side. The faster the flow, the greater the pressure
difference.


You need to try cleaning your EGR valve or buy a new one.

http://www.courtesyparts.com/Merchan...ode=14710-A32B

Looks like you may be in luck. Kevlo911, above, is selling an EGR valve, though it may not work with a 97.

 

Thanks for the help guys.