PDA

View Full Version : 240SX timing



NcTurnL
06-25-2006, 12:26 PM
I have a 1990 Nissan 240SX SE, SOHC

im suspecting the timing is off on the car beacuse when ever i rev it the rpm really bogs up and when the car gets to 1000rpm or lower it just dies out

how do I fix the timing problem for the car, I cant get out of the car more than 1 min without it shutting off

NcTurnL
06-26-2006, 02:02 PM
the question is, how do I adjust the timing?

3kgtdrvr
06-26-2006, 05:48 PM
undo the bracket that holds the distirbutor down and turn it when the car is running with a timing light on the crank and get it into the specs written on the hood or on rad support

NcTurnL
06-26-2006, 06:33 PM
Alright
but the car cant stay on without giving it throttle to keep it above 1000 RPM
how do I do it under this situation?

green91
06-26-2006, 06:38 PM
sounds like your idle air control valve.

NcTurnL
06-26-2006, 06:46 PM
would that also be the reason why the car feels so weak and the RPMs bog up?

green91
06-26-2006, 06:56 PM
Bogging is usually timing.. but having to keep your foot on the gas to keep it idling sounds like a IACV. Usually an IACV will only causes problems when starting/idling

NcTurnL
06-26-2006, 08:02 PM
would the IAVC also cause the car to have trouble starting?

green91
06-26-2006, 08:21 PM
Yes. Sometimes if its not working right youd have to hold the accelerator down to start hte car.

NcTurnL
06-26-2006, 08:26 PM
hmmm
where exactly is this part located in my engine bay?

green91
06-26-2006, 08:27 PM
Intake manifold

NcTurnL
06-26-2006, 08:35 PM
Hmm
alright,
im going to take a look at it tomorrow and see what I can do

greatly appreciate the info
Thanks man

green91
06-26-2006, 08:37 PM
if u remove it sometimes you can use some brake clean and get them to un-stick..

NcTurnL
06-26-2006, 08:40 PM
what if I dont have brake cleaner, lol

NcTurnL
06-27-2006, 02:41 PM
Alright well I figured out where the IACV was and tried cleaning it with WD40
Im just waiting to go get some liquid gasket and maybe some carb cleaner

I was looking at the ECU and I noticed on the back there was a idle speed/control thing you can turn with a flat head, should I adjust that? Ive never heard anyone else speaking about that.

Also, I have a SOHC, where is the EGR valve, and could I just cap it off?