Topic: Now it won't start......... (Read 1096 times)

ianrobbo · « **on:** 20 December 2006, 09:25:53 »

After all the hard work of replacing the broken valve spring in the brother-in-laws 2.5V6 (MY2000 facelift), now the darn thing wont start - I wish he'd come and picked it up last weekend when it was running lovely!

Anyway, did the test, got these codes:
21 Throttle posn - hi voltage
31 Crankshaft sensor - no signal
129 Don't know

Interestingly, there's no 19, Crankshaft sensor - incorrect signal, which may be significant.

I do remember catching the crank sensor wire behind the oil pipes, but when I noticed it I pulled it out okay, but it did squash the convoluted outer sheath a bit, didn't think it would be enough to make a difference, but then I was surprised at how little it took to damage the knock sensor wire when I caught that round the coolant pipe.

So my bet is the crank sensor - any other ideas?

STMO123 · « **Reply #1 on:** 20 December 2006, 09:35:31 »

A good starting point has got to be the crankshaft sensor. Sort that one first and see what happens.
It does seem a little strange that it was running OK after you put it back together, but, if you've damaged the wire, it may have taken a little while to break down or short.

TheBoy · « **Reply #2 on:** 20 December 2006, 10:02:49 »

19 - crank incorrect signal
31 - crank no signal

So a 31 can still be a knackered crank sensor, just its not as conclusive on a non running car as a 19

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Author Topic: Now it won't start......... (Read 1096 times)

ianrobbo

Now it won't start.........

STMO123

Re: Now it won't start.........

TheBoy

Re: Now it won't start.........