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View Full Version : SR20DET help!

jdmsource
05-15-2005, 03:07 PM
i have a 1990 240sx with a blacktop sr20det in it. initially everything was awesome and it ran very good, but lately it feels as though when i am in the lower rpm range (under 3000rpm) i can feel it being a lil sluggish. it feels as though it doesnt want to accelerate, but once it clears the 3000rpm mark it smoothens out a bit. i have checked for leaks and such but found nothing. any advice or suggestions? would be greatly appreciated! thanks in advance
jdmsource
05-15-2005, 09:11 PM
any advice?
Flybert
05-15-2005, 10:01 PM
How long was it running good? A few days? A few weeks? A year?
jdmsource
05-15-2005, 11:14 PM
its been running for a few months now and it was all good untill a couple of days ago!
Flybert
05-15-2005, 11:31 PM
Try some different plugs. Yours could be fouled.
jdmsource
05-16-2005, 09:21 AM
i thought it was the plugs too, changed them, and nothing still
sepulchral
05-16-2005, 11:14 AM
fuel filter get a z32?
check mafs, any spec of dust will throw it off
check ecu for error codes (do a search if u dont know how)
the head
05-16-2005, 01:37 PM
have you made any recent modifications/ made any changes in the car
jdmsource
05-16-2005, 10:59 PM
have you made any recent modifications/ made any changes in the car
i installed the profecb b/c, but i disconnected taht and went back to stock to see if that was the case, but unfortunately it was the same case :( it seems to be more sluggish right when i start driving for the first few mins.
jdmsource
05-17-2005, 10:20 PM
greaat!!!!! more problems :( .. when i punch it, it boosts to 7psi and then as i keep reving higher, the boost falls all the way down to zero. i checked all the piping for leaks and didnt find anything!
whomiked
10-08-2005, 07:01 PM
Same thing is happening to me.
Sil Beer S13
10-08-2005, 07:24 PM
sounds like a vaccum leak to me. check again.
hi.im.kaji
10-10-2005, 05:56 PM
damn sounds like some kind of leak.....but i dunno why the boost is falling.....o yea also a couple of quetions...did u swap ur sr20det into your s13 yourself?
mRclARK1
10-11-2005, 06:20 PM
My bet is a leak...they can be nasty to find sometimes. My friends SR had the same problem, we checked for leaks and didn't find any, changed plugs, checked the MAFS, and disconnected his B/C...and it was still doing it. So... we checked for leaks again...and found two of them. If not that a new MAFS might be the solution. good luck.

P.S. Where are you located in Canada? are you in Calgary?