95 ka24de injectors not firing!!

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tom1o12
Posts: 19
Joined: Mon Apr 19, 2010 9:48 am
Car: 1990 s13 w/ 95 ka24de

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i have a 95 dohc in my 90. usin all s13 electronics.. the plugs r firing but the injectors arent firing fuel. there is fuel going into the rail and goin out the return tube. pump comes on, pressure seems good. but no signal to the injectors? plz help :yesnod


tom1o12
Posts: 19
Joined: Mon Apr 19, 2010 9:48 am
Car: 1990 s13 w/ 95 ka24de

Post

so no one has a clue as to why theyre not firing...? :poke:

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Infinitiguy19
Posts: 7787
Joined: Sat Dec 22, 2007 4:58 pm
Car: 1993 Infiniti Q45 188580 Miles
1994 Infiniti Q45a 240000 Miles

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Check the Crank Angle Sensor and ECU.

Are the spark plugs firing?

tom1o12
Posts: 19
Joined: Mon Apr 19, 2010 9:48 am
Car: 1990 s13 w/ 95 ka24de

Post

everything on the coil, dist, and maf r plugged in correctly. the ecu is fine as well. I checked the injector curcuit on the fsm and i seem to have it all connect.. yes the plugs are firing.

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Infinitiguy19
Posts: 7787
Joined: Sat Dec 22, 2007 4:58 pm
Car: 1993 Infiniti Q45 188580 Miles
1994 Infiniti Q45a 240000 Miles

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How clean is the intake, Valves....?

tom1o12
Posts: 19
Joined: Mon Apr 19, 2010 9:48 am
Car: 1990 s13 w/ 95 ka24de

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im assuming pretty clean. the valve train looks great.. still has the yellow and green paint on the cams :biggrin: i've timed it 4-5 times already

tom1o12
Posts: 19
Joined: Mon Apr 19, 2010 9:48 am
Car: 1990 s13 w/ 95 ka24de

Post

idk y that would keep the injectors from firing entirely.. anyone else have any input?


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