HELP! 98 Z28 tries to start and throws crank sensor code. Please help

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Nov 8, 2013 | 09:53 PM

mustang93

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HELP! 98 Z28 tries to start and throws crank sensor code. Please help

I have a 98 Z28. The car cranks and tries to start. Only getting spark to 3 cylinders. And fuel to all. Fuel pressure checks out. It keeps throwing p0335 and p0336 crank position sensor code. I replaced the cam and crank sensor still the same issue. I also checked all the grounds. Anyone have these issues before??

Nov 9, 2013 | 07:47 AM

mustang93

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Anyone?

Nov 9, 2013 | 08:21 AM

MontecarloDrag

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Check wiring from PCM to sensors, you may have a broken wire

Nov 9, 2013 | 04:09 PM

mustang93

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All wires are good.

Nov 9, 2013 | 04:13 PM

dreww

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From: burleson, tx

Check voltage on those sensors u replaced. Mayke sure they are getting power, ground and signal to pcm

Nov 9, 2013 | 06:45 PM

mustang93

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Ok. I checked all grounds and 12v at the PCM. But not getting any cam sensor signal from brown pcm wire. But if I hook the test light to the positive aide and probe the wire and crank it over it back dires real loud.

Nov 10, 2013 | 08:57 AM

dreww

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From: burleson, tx

Ok, break in that wire somewhere. If u have to, hard wire a new line from pcm pinout to sensor.
I always get them confused. Cam and crank sensors. But one out will cause a no start, the other will cause a hard start with backfire, usually cold engine. I believe bad crank sensor signal is no start, bad cam sensor signal is hard start with backfire.