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This CQ is getting around with a no spark issue. old thread

1720 Views 14 Replies 6 Participants Last post by  freeflow90
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that friggin' bites....since you adjusted the t-belt maybe You should gives the original Distro. a try for s&g's...I can shipped down to You if You want.

-C
Test (or replace with known good units) your engine speed sensor and crank position sensors. A google search for those two will lead you to some good info. Check your grounds as well. Also, do you hear the fuel pump when you turn the key on, before attempting to crank it over?
Toph said:
Test (or replace with known good units) your engine speed sensor and crank position sensors. A google search for those two will lead you to some good info. Check your grounds as well. Also, do you hear the fuel pump when you turn the key on, before attempting to crank it over?
starting with a OEM replacment igintion switch tomorrow going to see where that leads me. I noticed that the speeds sensors all look new. (doesnt mean there good) but want to start with the simple stuff.
any chance that the flywheel timing pin was damaged or broken?
Double checked distributor position and that it's not 180 degrees off?

Pull the #1 cylinder spark plug, put a dowel or some long enough to touch the cylinder top and visible from the outside. rotate the engine until the dowel is at its highest point sticking out, thats #1 TDC. Now check the distributor position, the #1 plug wire should be at about 8 o'clock position with you facing the distributor (firing order is 1, 2, 4, 5, 3, starting at about the 8 oclock position.

ECU codes would help you troubleshoot
audiPete said:
any chance that the flywheel timing pin was damaged or broken?
Double checked distributor position and that it's not 180 degrees off?

ECU codes would help you troubleshoot
ill have to check for the pin. No codes.
Jordan, pin should be there I rang it out before with a mutlimeter dry cranking the motor...never saw any blink codes come up when I pulled them via the two molex plug under the dash.
Iginition switch is new but I don't think it's a OEM one.
Sorry for such a delay. Working 65+ hours aweek is getting old! I installed a OEM ignition switch. No change. ohm tested the crank sensors (good) Then it randomly started. I just bought a coil w/ignition module and going to try that next because there is no way to test it.
My guess is either the crank sensor or possibly the wiring in the harness to the ignition switch.
Is it possible the ECU is just bad or have a bad solder joint?
rogermoz said:
Is it possible the ECU is just bad or have a bad solder joint?
I tried another ECU.

I also ohm tested the wiring from and to: Hall sender. Ignition Module. Engine speed and Crank sensors. to the ecu all good.
not sure maybe try MAF, grounds, check pins going into ECU, or some relays
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