COMPRESSION TEST RESULTS: HELP PLS

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AndyAngelz
Posts: 2
Joined: Thu Dec 26, 2013 11:54 am
Car: 1996 240sx

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Before I went to Ocean City my compression was 180-185-180-185 but after I drifted on the street i avoid hitting the curb and hard braked and my car backfired and stalled out. The cone filter on my maf sensor came off and I drove a whole day with it off without noticing.

I have a KA24DET. I noticed throughout the day that my car has been "sluggisH". At low rpms and such my car would boggle and drive slow as hell and throttle response felt like the car was gonna stall everytime i touched the gas pedal, but then the rpms would go up slowly. WHEN I hit boost, the car would seem to drive almost perfect, except it still had the delayed throttle response.

I came home and re-did my compression test and the results were 195-90-90-195. What is this supposed to mean? Do I have cracked piston rings? I also took my MAF sensor out and sprayed it and my car felt a little better but it still had delayed throttle response.

And whenever my car stalls out in the road, I literally cannot crank it back up because I think it randomly ran rich as hell. I would have to push my car down a hill and then force it by a rolling start AND IT WOULD WORK. But I was not able to crank it up normally ONLY if my car stalled out when I was driving. On normal start up, I have to hold the gas pedal slightly to turn on the car, otherwise it would bog up and down and stall.

ALSO NOTE: There is no visible white smoke coming out of my exhaust, BUT oil is leaking out of my breather tube.

Help me please I'm a dumb a**.


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ezb57e
Posts: 471
Joined: Sun Jun 29, 2014 9:02 pm

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Sounds like the head gasket has failed between #2 and #3 cylinders.

waxdnuggz
Posts: 260
Joined: Mon Dec 10, 2012 2:51 pm
Car: 90 240sx hatch SOLD
91 240sx hatch SOLD
92 super sweet daily (freezing cold a.c., working ps and pw)
93 240sx hatch SOLD
94 240sx vert SOLD
Location: orlando florida
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Definitely seems like head gasket blew between cyl. Might of ran rich from lack of compression on those 2 cyl. The backfire sounds like you detonated from running too retarded of ignition whats your timing set to? Does the car when idling sound like a muscle car? And have a very rough idle. You could of very well cracked your rings but because the 2 cyl are next to eachother it might just be head gasket. Takes less then an hr. You got this


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