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No Spark No Start


atl.cut

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I have a 1995 Oldsmobile Cutlass Supreme V6-204 3.4L DOHC VIN X SFI. I put a 1993 Lumina 3.4 DOHC crate engine in it. I have fuel pressure. I can not use the scan tool. When I plug it in I dont get the usual blinking 12 code. The light just stays on. New coil and ignition module. No spark to the plugs. The motor just turns over. Any thoughts?

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Check the fuse block under the hood on the passenger side should be a 10 amp. I had that one blow out when I lost my ing. mod.

 

Same here... that drove me nuts until I found out what it was...

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  • 2 weeks later...

Fuses are all good. Whats the best way to check the crankshaft pos sensor?

 

unplug sensor, take volt meter, attach leads to sensor and have someone crank engine, you should see voltage increase and decrease, like 0-7-0-7 and so on

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Is there a specific way to hook up the volt meter

 

if you have a digital one it wont really matter, if you hook it up backwards it will just read a minus number (reverse continuity) if you have an analog one it simply wont work..

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