Possible causes of no spark??

[sqwerz]

just bought a 92 gst 5 spd 127k no start condition no spark..
are there any known no spark conditions on these DSM's
coil pack, power transistor, ecu??
thanks in advance

 

[Moosh]

If the cam angle or crank sensors are damaged then you won't get any spark. Actually I think your car won't even crank if your crank angle sensor is broken, don't quote me on that though. Other things...... power transistor, ECU, or bad coil packs (both would have to be simultaneously bad which isn't likely) could cause it. If you have a buddy with a turbo 1G than see if they will allow you to test your CAS, coil packs, and power transistor in their car. Also you can test your ECU in it, would make your life a lot easier to start checking off what works and what doesnt.

 

[sqwerz]

Originally posted by Moosh
If the cam angle or crank sensors are damaged then you won't get any spark. Actually I think your car won't even crank if your crank angle sensor is broken, don't quote me on that though. Other things...... power transistor, ECU, or bad coil packs (both would have to be simultaneously bad which isn't likely) could cause it. If you have a buddy with a turbo 1G than see if they will allow you to test your CAS, coil packs, and power transistor in their car. Also you can test your ECU in it, would make your life a lot easier to start checking off what works and what doesnt.

thanks for the advance

 

[sqwerz]

GUYS NEED MORE HELP!!!!!!!
I swapped my ecu, cam sensor, coil packs, and power transistor.
all are good...but the damn car still has no spark.

 

[LightningGSX]

How did you test for spark?

 

[sqwerz]

Originally posted by LightningGSX
How did you test for spark?

got a spark tester...nothing lit up in all the cylinders

 

[LightningGSX]

Crankshaft sensor? harness damage?

 

[noyorol_1]

i had same problem with mine.i would do a compression test try it and trust me.i was not getting a spark and i replaced the coil packs angle sensor and all that good stuff.so just give that a try

 

[loreak]

if its your crank angle sensor you would get no spark or fuel and it would just turn over and not start, i had 2 go bad

 

[noyorol_1]

did you do a compression test yet give that a whirl.that should do the trick

 

[sqwerz]

Originally posted by noyorol_1
did you do a compression test yet give that a whirl.that should do the trick

compression test on monday..also will check that crank sensor
thanks for the advice guys

 

[Mitsuturbo]

92 does not have a crank sensor.. the only timing sensor on the vehicle would be on the end of the camshaft.

 

[sqwerz]

Originally posted by Mitsuturbo
92 does not have a crank sensor.. the only timing sensor on the vehicle would be on the end of the camshaft.

damn feel confused now ...Is there really no crank sensor
on a 92

 

[noyorol_1]

there should be.i know on the 2g u got to take the cover off and it is betwween the gears u would think it would be the same on the 1g.well keep posting let us know how it gos

 

[loreak]

i was under the assumption all 4g63's have crank sensors, the harness is on the back of the engine on the camgear side and the wire goes under the timing belt and weaves down to along the edge of the crank, and the sensor sits on the edge so it can see every time the crank rotates once, but that was on my 2g.....i thouht 1g's have one too

 

[cait sith]

No, that's the whole beauty of the 1G in a 2G swap. That's why RRE was trying to machine 2G front cases to hook up to the 6bolt block. But utilizing the 1G CAS, the results are the same.

 

[LightningGSX]

I believe he was talking about crank sensor not cam angle sensors.

 

[sqwerz]

so guys is there a crank sensor on a 92 or not...didn't have time to check it out yet...thanks again