My 1989 DOHC swapped 240sx is currently having trouble and I need help getting it fixed because I have tried just about everything with no success.

The Problem: As I drive down the road for no reason the motor will just die. I try give it gas with no luck or try popping the clutch which also doesn't work. When I try to turn it back over the motor turns over but won't start. When I checked the spark after it broke once I noticed the plugs weren't firing. Then anywhere from 1-20min later the car starts up like not a damn thing is wrong, and it will drive off. Finally I should mention that the car doesn't have to be driving for a while before it turns off, it once shut off after starting it in the morning and going about 100ft down the road.

Failed Solutions:
2 different coils
2 different ecus
2 different mafs
emissions check
coolant sensor check
timing reset to TDC
new plugs
grounds check,cleaned
distributor contacts cleaned

any ideas or anyone else have this problem then plz help me out

 

new engine.

 

gas cap mod... take your gas capout and put it on a new car........ ill give you $10 for your current one....so ur a ****** cause i neevr heard the part about the plugs not firing when it happens.. hit me up lata.. we can start there...

 

should Have Bought A Honda!!!!!!

 

^^^^ bahahahahaha thats the stupidist comment i have ever seen on this entire web site..... u doin standup??? the thing with cars is.... THEY BREAK.... all of them.. take your honda lovin ass into fwd land k thnx bye!!!!

 

dont get all hyped up josh's...its just someone either tryin to act liek blake or blake

 

possible fuel problem, filter, pump?

 

it is blake... dildo sucker....

 

Its electrical not fuel related, no spark when it shuts off.

 

will it revv up fine if its warm at an idle?