Light engine backfire.

1989 NISSAN 240SX
222 MILES • 4 CYL • 2WD • AUTOMATIC
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LAYLANDMATTHEW
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  • 2 POSTS
So i was driving home from school(I goto UTI) which is about 30 miles highway driving, and about 2 miles city driving, as i got to my exit and was slowing down i noticed that my temp was going up higher as i came to a stop, so i drove around town and the faster i went the cooler it got, so i pulled into my house and filled my radiator with water, noticing it was a little low. it now longer over heats but i have not drove it yet because, this is my main question, only when right before and at op temp and at idle the car has a very light backfire and as you increase the rpm's to about 2k the popping gets semi louder and more frequent. engine also feels like it has a misfire

Vehicle History:
Check engine light on, OBDI, Code 35, Exhaust gas tempature sensor.
Timing is set at 17 Degrees Advance.
I usually run 89 or 91 in it but i put 87 in this morning.(problem didn't start till after drove roughly 50 miles)
Just put in heli coils on 5 out of 8 of the exhaust manifold holes, one is still stripped. the other 2 are fine.

Apr 21, 2011 at 12:23 AM
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RASMATAZ
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  • 75,992 POSTS
Try giving it a major tune -up and see what happens
Apr 21, 2011 at 12:26 AM
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LAYLANDMATTHEW
  • MEMBER
  • 2 POSTS
by tune up what do you mean? it's got, new cap, plugs, wires, new oil, water/antifreeze, i was gonna sea foam it this weekend but this happened.

Thank you for the reply.
Apr 21, 2011 at 2:42 AM
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