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[Ken T]

Greetings,
I was driving home tonight, just got to the road works section with the hard shoulder coned off  , and the spanner light came on. I didn't notice if I was in limp mode as I was going down hill at 50mph. Within 30 secs or so she cut out and I had to coast to the next junction. I got onto the hard shoulder, and within 1 or 2 spins she restarted. I set off again, spanner light out, OK for a couple miles then cut out again, she restarted with 3 or 4 spins. Another 2 cut outs until home, however after 1hr rest she starts fine. I read the codes and got P0340 (8 ), P0340 (4), and P0335 (?). I was running on LPG at the time and didn't think to change to petrol. Any ideas ?, could it be the dreaded crank sensor ?.

Ken

[Marks DTM Calib]

The codes suggest so......and so do the symptoms!

[Ken T]

Thanks, I was getting confused with the P0340. Looks like a trip to Jct 600 dealers tomorrow.

Ken

[TheBoy]

If the calibration was a long way out, causing a bad misfire, could that throw a spurious crank sensor?  Personally doubt it, but odd to see both crank and cam sensor faults on V6 (it is a V6, isn't it?)

And if calibration, there would be a trim code...


(if its a 4 pot, both cam and crank sensor fubar)

[Ken T]

She's been running on LPG OK, reasonable acceleration, a bit down at high speed we haven't got it mapped properly, ( duff laptop battery !) however a new battery arrived a couple of days ago so will try and match up LPG and petrol.

I managed to get a new sensor, JCT 600 didn't have any so  I had to get one from Autovaux. In preparation for it failing soon, I will order one from Andy C.

Ken

[freecall666]

more engines fail when there are road works, all the stopping and move a few feet then stopping again, herd other day there were 8 cars broken down on m62, within 15min's.

[Ken T]

I fitted the new crank sensor, and set off this morning, and.......

After about an hour, same again, spanner first then she cut out. I managed to get onto the hard shoulder and she restarted fine, but felt a bit rough. I read codes at lunch time, same again, P0340, P0340 and P0335. And tonight, after about 1 hour, spanner light came on, and then a surge like fuel cut off and then re supplied, happened a few times. I changed over to petrol for a couple miles then back to LPG and she was fine for the last 30mins or so. This is wierd, I will try and remember to make sure I am on petrol 60mins after setting off, to see if its LPG related.

Ken