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Discussion Starter #1
The p38 had problems starting last week, 1st time this has happened.
It turned over but no ignition. It has an LPG system which allows me to start on LPG if there is a problem on petrol but still no start.

I tried again and finally it started up, just as if there was never a problem.

Today i turn the key and it spins, and spins but no start. there is no attempt to startm just spinning of the engine.

I have put a timing light (from many years ago) on +ve, -ve and a HT and it shows no spark.

Any ideas?
 

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Bad connection on the crankshaft sensor?
 

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Discussion Starter #3
Thanks Nipper, i thought as much but wanted to see if there was something i was missing.

I note that you cannot accurately measure a crankshaft sensor without specialist kit and the obd was not showing up a code so i thought it was either wiring to the sensor or the sensor itself.

I did have a look over the wiring a month or so ago when i installed the lpg system and all looked secure and in good nick so picked up a sensor to try.

3 sensors for the p38 Petrol Auto:-
up to TA (1996) ADU7342L
VA (1997) to WA(1998) ERR6119
XA (1999) on ERR7354

Mine was ADU7342L at a cost of £43 from the main dealer (Who had one in stock :D )

It took 10 mins to swap using a 7mm socket with 1/4 ratchet.
The sensor is on the right of the engine block (as you look at the front of the car) and is accessed from below with an axle stand to give clearance.
The wiring comes from the right bank harness down the back of the block so can be accessed from above and enough wiring is there to pull the sensor up and disconnect.

Once replaced there's no resetting (unless you've managed to get a CEL)
I love the simple jobs.
 
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