Need help finding bad wiring
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Car: 1989-TPI-GTA
Engine: 5.7
Transmission: 700R4
Axle/Gears: Limited Slip/Stock Gears
Need help finding bad wiring
Don't have much experiance troubleshooting bad wires, besides corroded or broken ones. What am i looking for then, high resistence readings...what value would be too high then? And i guess system needs to be powered up during testing also?
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Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Need help finding bad wiring
If you are checking the voltage ( DC Volts scale ) ; as in is any power getting to a item
If checking resistance, power off and the DVM on the Ohm's scale
Any .
Unless the circuit has some form of resistance in it ( a relay coil , etc ) should see almost no resistance.
Obviously a long wire run will have more resistance than a shorter one
If checking resistance, power off and the DVM on the Ohm's scale
Unless the circuit has some form of resistance in it ( a relay coil , etc ) should see almost no resistance.
Obviously a long wire run will have more resistance than a shorter one
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Car: 1989-TPI-GTA
Engine: 5.7
Transmission: 700R4
Axle/Gears: Limited Slip/Stock Gears
Re: Need help finding bad wiring or:2 stubborn 2 start
Well, i found bad connection on pins and cleaned it and now have spark and injectors working...but, still no go..not even a p0p!
Could it be that when i was trying to start it before doing fixes, alot of fuel was leaked from bad injectors into crankcase and cylinders and that fuel won't ignite and is acting like a flood condition? Also, could plugs be fouled from that? I am getting spark from them, so you would think i would at least get a little combustion.
Also, is it possible computer is bad in a way that could make my bird stubborn to start? Thanks again!
Could it be that when i was trying to start it before doing fixes, alot of fuel was leaked from bad injectors into crankcase and cylinders and that fuel won't ignite and is acting like a flood condition? Also, could plugs be fouled from that? I am getting spark from them, so you would think i would at least get a little combustion.
Also, is it possible computer is bad in a way that could make my bird stubborn to start? Thanks again!
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Car: 1989-TPI-GTA
Engine: 5.7
Transmission: 700R4
Axle/Gears: Limited Slip/Stock Gears
Re: Need help finding bad wiring
Just following up on what happened...Shes alive!
It all started as a no start unless starting fuid was used...replaced injectors...pickup coil, and used an old GM icm..pulsed only when purple dist wire was used..then noticed connection to old icm was corroded, so cleaned it and all was well again..lots of tests in between all this though...Good Luck!
It all started as a no start unless starting fuid was used...replaced injectors...pickup coil, and used an old GM icm..pulsed only when purple dist wire was used..then noticed connection to old icm was corroded, so cleaned it and all was well again..lots of tests in between all this though...Good Luck!
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Car: 1989-TPI-GTA
Engine: 5.7
Transmission: 700R4
Axle/Gears: Limited Slip/Stock Gears
Re: Need help finding bad wiring
Jz wanted to give thanks to vetteoZ for advice and help he gave me here...we are lucky to have his kind at this site.
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