2nd Generation Specific 1986-1992 Discussion

Electrical Gremlin Help Needed!

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Old 01-20-2004, 07:31 PM
  #31  
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i switched around my fuses in the engine bay to make sure they were all good. Everything seems to point to a ground not being grounded. Only thing is, i dont know where this magical ground is



every ground that is on the harness in the engine bay is grounded to a nice ground. Any other grounds i should check?
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Old 01-20-2004, 07:50 PM
  #32  
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Originally Posted by sidewinderx7' date='Jan 20 2004, 04:56 PM
if the afm isnt getting a signal, would that cute power to the pump and injectors?
no the ecu will fire the injectors if it has power and sees rpm. the ecu grounds the injectors. if the injectors do not have power then there is a problem on the power side. try the main fuse, main relay etc
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Old 01-20-2004, 08:19 PM
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Originally Posted by sidewinderx7' date='Jan 20 2004, 08:56 PM
if the afm isnt getting a signal, would that cute power to the pump and injectors?
Engine should start and die right away with the flow meter unplugged and you not even getting that.



And you got the ground that is near the injetors on the engine block right, what year is this car again?



C
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Old 01-20-2004, 08:26 PM
  #34  
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its a 91 t2, i will take some pictures and video.. 1 sec, brb..
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Old 01-20-2004, 11:28 PM
  #35  
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well ****.. i would take pictures and movie but my cameras batteries died. After taking 3 pictures, the ******* BRAND NEW batteries died. This camera is going out the ******* window. Jesus.. everything i own is turning into **** piles!
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Old 01-21-2004, 09:03 PM
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Hmm I thougth my reply went thru.



If you got the ground on the fuel injector side to the engine block and then the one probably by the shock tower, check and see if you get voltage at the egu fuse. Test it with and with out the egi fuse, you may need someone to crack the car while wihle u do this.



C
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Old 01-23-2004, 12:07 PM
  #37  
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Check the mass air flow (MAF) sensor. It has a switch that shuts off fuel (I don't know about the injectors) when no air flow is detected.



Also, you didn't reverse the primary & secondary harness did you? It's not easy but it can be done. (trust me here).



The fuel flow & injector problem are most likely related. Take your time. Start at the beginning with a good wiring diagram. Start at the fuel pump relay and work your way back to the ECU. Chances are, it will be something simple since it was working when you took the motor out.
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