Finally Resolved Stumbly Idle Problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Thieu · 12-26-2003, 02:39 PM

The culprit was.......... drumroll........

The EGR valve. I tried lots of stuff before realizing that the EGR was clogged up and remaining open at idle, therefore resulting in a stumbly idle. I didn't bother replacing it, I just removed it. I cut up a piece of sheet metal and screwed it on the intake manifold hole. As for the exhaust manifold, I stuck a nickel in the hole and used the screw thing that was on the EGR tube. Worked like a charm. The car isn't 100% smooth at idle, but I'd say the shaking is 95% gone and the car isn't missing/backfiring at idle anymore.

12-26-2003, 02:39 PM	#1
Thieu Zilvia Member Join Date: Sep 2003 Location: tx Posts: 199 Trader Rating: (0) Feedback Score: 0 reviews	Finally Resolved Stumbly Idle Problem The culprit was.......... drumroll........ The EGR valve. I tried lots of stuff before realizing that the EGR was clogged up and remaining open at idle, therefore resulting in a stumbly idle. I didn't bother replacing it, I just removed it. I cut up a piece of sheet metal and screwed it on the intake manifold hole. As for the exhaust manifold, I stuck a nickel in the hole and used the screw thing that was on the EGR tube. Worked like a charm. The car isn't 100% smooth at idle, but I'd say the shaking is 95% gone and the car isn't missing/backfiring at idle anymore. __________________ 90 240sx daily driver/project car "SOHC it to me"