My SR is running on 3 cylinders...

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jessetang
Posts: 493
Joined: Sat Sep 10, 2005 7:59 am
Car: 1995 240sx

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I had my car's harness repaired because the harness was a mess, and it get to a point where it would not start (crank but not running). Now, the harness came back, I put it back into the car, and the car started right up. But it is only running on 3 cylinders. I checked the compression (150). Checked for spark, and check for power to injector. Everything seemed fine. The only funny thing is when I check the hertz on the injectors, the range for 1,3,4 (the ones that are running) is 40-60, where number 2 is 70 -90. I am seeking suggestions before I am going any further.

ThanksJesse

P.S. It is a redtop sr on a S14


painengaged
Posts: 24
Joined: Sat Jan 31, 2009 2:54 pm
Car: s13 sr20det

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last cylinder wasnt wired right or a cut in the line something. thats what happened to mine check your oil smell for gas. with that cylinder not firing it will fill your motor with gas.

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drftsx
Posts: 414
Joined: Wed Jan 04, 2006 1:47 am
Car: 90 240sx(sr)

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does it sound pretty crappy? When mines did that i had bent valves.

Beanstalk
Posts: 219
Joined: Sun Nov 16, 2008 11:10 pm
Car: 89 240sx & 95 240sx

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jessetang wrote:I had my car's harness repaired because the harness was a mess, and it get to a point where it would not start (crank but not running). Now, the harness came back, I put it back into the car, and the car started right up. But it is only running on 3 cylinders. I checked the compression (150). Checked for spark, and check for power to injector. Everything seemed fine. The only funny thing is when I check the hertz on the injectors, the range for 1,3,4 (the ones that are running) is 40-60, where number 2 is 70 -90. I am seeking suggestions before I am going any further.

ThanksJesse

P.S. It is a redtop sr on a S14
.....lol mine too .... but i blew my Headgasket

nuts510
Posts: 181
Joined: Tue Nov 22, 2005 8:10 am
Car: sr20det 95 240sx, rb20det 93 240sx convertible, 78 280z turbo, 71 ca18det datsun 510, 72 scout,88 CR

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be careful going this which you can always unbolt the fuel rail and aim it so the gas will spring into a container of some type then cranked the car over and watch the injectors if the one cylinder that's not firing is not springing gas or spring in five to 10 times more than the others you have found your problem.


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