Need some master guru electrical guys lol

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LingLang13
Posts: 6
Joined: Sun Apr 14, 2013 8:52 pm
Car: 93 S13 hatch

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So long story short my number 2 cylinder isnt getting fuel and its 100 percent random when it goes out. Temp and humidity doesnt matter. Its a 93 240 kade and I have done the following...

Tested for spark - good
Voltage to injector plug - good
Have continuity from ecu to plug
Redid all the major grounds
Reset ecu and checked its guts and everything appears to look great
No codes
Fuel pressure 40+ and regulator works fine
Swapped injector with another
Used spare injector and plugged it in and felt it clicking when I turned the dizzy by hand
Took number 2 plug out and started it and compression was audible and couldnt smell gas from the hole either
11.4 ohms present on injector

And a few other random things. I'm assuming I need an ecu then but I dont have a known good one to swap it with so idk. It's also possible the other injector I tried was bad too. I just need some advice or something lol thanks.


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2_Liter_Turbo
Posts: 2674
Joined: Sat Jan 24, 2004 10:41 am
Car: _________________
'96 S14 Coupe: SR20VET
'90 R32 TH1 GTR: RB26DETT
'92 S13 Fastback: SR20DET
'11 V36 Sedan: VQ25HR
'06 GMT800 2500HD: LBZ Duramax
Location: DFW, Texas
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Post

You sure it's lack of fuel? What do the plugs look like when you pull them? Dry as a bone? Also, check the resistance in all the plug wires, they should all relatively be the same, just go up as the wire gets longer. If #2 is way out of line, you may be just getting a super weak spark.

LingLang13
Posts: 6
Joined: Sun Apr 14, 2013 8:52 pm
Car: 93 S13 hatch

Post

Yeah the number 2 plug was dry as a bone. I know my other injectors are working fine because the car almost dies when any other plug is pulled other than 2.


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