Just had motor put in. when I hook up the wiring harness to the egr valve, it sputters and wants to stall out. Is this a bad egr valve, or something worse, like incompatible computer module?
2006-09-17 07:55:54 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
gdwrnch40. By electrical, would you mean a faulty egr valve, or is there a selonoid or switch thet controls the egr?
2006-09-17 08:04:00 · update #1
Thanks for all the answers.
I just want to add that this egr has no vacuum lines, it's a digital egr valve, if that makes a difference.
2006-09-18 11:04:36 · update #2
Your car's EGR valve is described as "Linear", and controlled directly be the PCM without relays or control valves. The EGR valve gets its power from the car's electrical system, and the PCM completes the circuit by grounding whichever solenoid(s) necessary to introduce the desired exhaust gas.
Check to see that there isn't one or more of the wires in the EGR harness that might be pinched, chafed or otherwise grounded to the engine or chassis.
You may have to use a volt-ohm meter to check for continuity between the harness and chassis ground. While doing this, disconnect the battery AND the PCM harness. Remember, the PCM has its own ground source(s).
Good Luck
2006-09-17 08:10:43 · answer #1 · answered by Ironhand 6 · 0⤊ 0⤋
Your EGR valve is stuck in the open position. Mine did that, so I took it out and removed all the rust and cleaned it up. That cured my problem.
When that valve sticks open it allows too much exhaust gas to enter your input and the Engine fails to run properly. It will actually kill the engine at times.
There is also a Vacuum amplifier that could cause it, but my money is on the valve itself. I don't think the amplifier will cause the valve to stay open, because the car will run with a faulty Vacuum amplifier. Just wanted to give you the complete story. If you had computer problems, it would most likely not run at all.
2006-09-17 08:10:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It sounds like the EGR valve is opening when you plug it in,causing the engine to lose vaccuum.Sounds like an electrical issue.
2006-09-17 08:00:00 · answer #3 · answered by gdwrnch40 6 · 0⤊ 0⤋
You must have hooked the EGR valve to manifold vacuum, it needs to be hooked up to ported vacuum !!!!!! Another words vacuum on acceleration !!!!!!!!
2006-09-17 08:59:10 · answer #4 · answered by john l 5 · 0⤊ 0⤋