Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - SR20DET harder and harder to start....smokes on accel

tire_machine · 08-05-2010, 09:24 AM

I am trying to figure out what cause(s) could be the root of my troubles.

It is just easier if I list this:

-Cold start / Fuel pump fuse : The car has always had a cold-start issue, and I haven't been able to fix it. (ECU is microtech). If it doesn't crank over the first time I try, it will blow my fuel pump fuse if I try again without turning the car completely off. Just recently the car has begun to do this even during the summer months (morning only). The fuse for my fuel pump is 10A

-Oil in the spark plugs / intake pipe : The car's compression is fine, but I found oil in spark plug 1 & 3. Also, the car has always shown blowby from having oil in the intake pipe

-Smoke after hard accel : After a hard pull (usually in 2nd), the exhause starts to smoke white (coolant). Car has test pipe.

I don't know if this is an issue, but after installing an AEM wideband, my AFR jumps all over the place when cruising with 10-20% throttle, going from rich to lean. This is most likely a tuning issue that needs to be looked at.

Sank you!

08-05-2010, 09:24 AM	#1
tire_machine Leaky Injector Join Date: Dec 2008 Location: canada Posts: 104 Trader Rating: (0)	SR20DET harder and harder to start....smokes on accel I am trying to figure out what cause(s) could be the root of my troubles. It is just easier if I list this: -Cold start / Fuel pump fuse : The car has always had a cold-start issue, and I haven't been able to fix it. (ECU is microtech). If it doesn't crank over the first time I try, it will blow my fuel pump fuse if I try again without turning the car completely off. Just recently the car has begun to do this even during the summer months (morning only). The fuse for my fuel pump is 10A -Oil in the spark plugs / intake pipe : The car's compression is fine, but I found oil in spark plug 1 & 3. Also, the car has always shown blowby from having oil in the intake pipe -Smoke after hard accel : After a hard pull (usually in 2nd), the exhause starts to smoke white (coolant). Car has test pipe. I don't know if this is an issue, but after installing an AEM wideband, my AFR jumps all over the place when cruising with 10-20% throttle, going from rich to lean. This is most likely a tuning issue that needs to be looked at. Sank you! Last edited by tire_machine; 08-07-2010 at 02:41 PM..