1990 Corvette 5.7 TPI Chasing a DTC32
I wonder if anyone can help me, I'm chasing the infamous Code 32. I've changed the EGR Solenoid and the EGR Valve which was hanging up. I drive with a vacuum gauge T'd in just before the EGR valve and do not see any change in vacuum while driving at 65 MPH. Vacuum holds at 10" when the code comes in. I've gone through the test documents with the flow charts and diagrams. Everything seems to test ok. It comes in after the car is driven for a while and clears itself after cool down. Vacuum lines appear ok.
I have seen a post recommendation on an 85 model where the trouble was cleared by placing a one way check valve from NAPA (730-1347) in the vacuum line from the plenum to the EGR solenoid. I think I would like to try this but am not clear about (Plenum to EGR solenoid). I wonder if he means between EGR Valve and EGR Solenoid? Does anyone have any information on this fix?
I would greatly appreciate any help with this.
Thanks!
I wonder if anyone can help me, I'm chasing the infamous Code 32. I've changed the EGR Solenoid and the EGR Valve which was hanging up. I drive with a vacuum gauge T'd in just before the EGR valve and do not see any change in vacuum while driving at 65 MPH. Vacuum holds at 10" when the code comes in. I've gone through the test documents with the flow charts and diagrams. Everything seems to test ok. It comes in after the car is driven for a while and clears itself after cool down. Vacuum lines appear ok.
I have seen a post recommendation on an 85 model where the trouble was cleared by placing a one way check valve from NAPA (730-1347) in the vacuum line from the plenum to the EGR solenoid. I think I would like to try this but am not clear about (Plenum to EGR solenoid). I wonder if he means between EGR Valve and EGR Solenoid? Does anyone have any information on this fix?
I would greatly appreciate any help with this.
Thanks!