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[huxley]

Right tonight was planned on finding out which crank sensor he has fitted to his car. Whilst the bonnet was up he started the car and it ticked over as it should. It sat idling ok for about 15seconds then went all lumpy and sounding like it was running on about 4cyl's (2.5v6) My mate then lifted off the airbox tube just above the airflow meter and without doing anything else he gently covered the air passage going through the gauze with his hands. he continued to resctrict the air volume until he had an opening of approx 10p piece and then the engine started to increase the revs on its own then when it sounded smoother he withdrew his hands and it ticked over on what sounded like all 6 cyl's. This continued to a point that he drove the car home.
People who have followed this thread will probably remember i have done a paper clip test and got 73,19,145.
Now before we go and source a new crank sensor what of the above would have anything to do with it? Ie trying not to waste money on things which wont help!
Cheers for the forth coming swift replies!!!!

[JamesV6CDX]

code 19 is imminent crank sensor failure.

You sorted the PAS yet?

[huxley]

not yet.....its no good steering if it wont go! if it needs too much spent on elctrical parts its a scrapper!

[VXL V6]

This continued to a point that he drove the car home.

You sorted the PAS yet?

not yet.....its no good steering if it wont go! if it needs too much spent on elctrical parts its a scrapper!

?

[JamesV6CDX]

from memory, 73 is MAF low voltage...

if it's running lumpy, check for air leaks?

[huxley]

sorry guys......yes he drove it home...all 400yrds down a country lane other than that he isnt using it until we can decide if its fixable! sorry for confusion!

[VXL V6]

145 - Immobiliser wrong signal - Think that'll be an old code. Ideally the codes need flushing to see what comes back.

Re the MAF code, have a read of this: http://www.omegaowners.com/forum/YaBB.pl?num=1155126172

James and Marks advice tally so well worth double checking again!

[TheBoy]

19 is defo faling crank sensor.

73 may point to MAF (rare on v6), but in my experience (and I tech2 a fair number of these) is often thrown erroneously when a 19 is stored.

Ignore the 145, thats unrelated.


Can't answer why restricting intake should affect it, as the throotle butterflies will do a much better job.