please help! im goin crazy on this.

ONLY for ADVANCED technical discussion about the 240sx!
nationall
Posts: 18
Joined: Sun Nov 22, 2009 6:35 am
Car: 93 240sx

Post

so here is what is wrong. third cylinder is not firing yet getting spark and fuel. ive tried two different dizzys, three injectors, two wiring harnesses, two mafs, plugs, plug wires, i have compression, 150. somebody mentioned ignitor..if so wouldnt all cylinders b dead? cas someone else mentioned but ive changed the dizzzy. what about the ecu? and this all started after i swapped in a different s13 dohc. to the person who gives me the proper info to fix i will send them 100 bux! im soo desperate here. i feel like a fat chick at prom.


compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

I. Say flattened exhaust camlobe. Do you have fuel and spark to that cylinder. Just start from scratch. Do you have fuel...next do you. Have spark next...do you have air? And does it all work together? Engine timing and spark and fuel timing.Let me know more details please I'm down for a Benjamin!

nationall
Posts: 18
Joined: Sun Nov 22, 2009 6:35 am
Car: 93 240sx

Post

haha for sure. i figured it out finally. bad ecu. it went bad inbetween swaps somehow.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

Haha! Cool beens, well Congrats. my tach went bad one tine and it was ecu. Took like a month to figure out!


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