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[Craig_R]

I was driving home for xmas to the northeast and i got 25 miles after 1.5 hours and the car just died in the fast lane, the rev counter went all over he shop up and down then just dropped to Zero.  

Pulled to the hard shoulder switch her off and back on she restarted but sounded alittle rough for abit Limped her back the 25 odd miles home
There was a bang as she died but i think it was just the LPG system back firing. Or could be the Cambelt Slipped ?

I really think the bang was a backfire of the LPG system when the car died (Mixer systems do Backfire loud from time to time)

The Codes That i have paper clipped out are  

0335         Crank sensor
0340         Camshaft sensor

Have these appered because the cambelt has slipped ?  

Can anyone help as i want to get back home for Xmas

Craig

[cem_devecioglu]

I was driving home for xmas to the northeast and i got 25 miles after 1.5 hours and the car just died in the fast lane, the rev counter went all over he shop up and down then just dropped to Zero.  

Pulled to the hard shoulder switch her off and back on she restarted but sounded alittle rough for abit Limped her back the 25 odd miles home
There was a bang as she died but i think it was just the LPG system back firing. Or could be the Cambelt Slipped ?

The Codes That i have paper clipped out are  

0335         Crank sensor
0340         Camshaft sensor

Have these appered because the cambelt has slipped ?  

Can anyone help as i want to get back home for Xmas

Craig

if cambelt slipped  car wont go anywhere else..Seems one of the two and my bet is on the crank sensor..

[Craig_R]

nope your right just checked the cambelt and it seems to be ok no teeth slipped

Now which sensor would fail for no reason whilst driving

Crank sensor or Cam Sensor

Why Would you put your money on it being the crank sensor cem_devecioglu is it because it failed while is was driving ?

here is a picy of the cambelt marks to see if they are ok


I dont want to have to buy two sensors if i dont have to at 40 quid a pop

[cem_devecioglu]

Though I'm no expert on timing seems proper for me..But may be other members have something to say..

On omegas I see more failure with crank sensor then cam..

Lets wait  :-/

[Craig_R]

oh if it helps find out which sensor it or if it is the sensors it backfires alot now on LPG but not on petrol

oh and it seems to be limited to 4500 rpm

Any help to get me home for Xmas Would be great Chaps

Thanks

Craig

[cem_devecioglu]

can you control the crank sensor cable ?

[TheBoy]

Strange thing is, the 4 pot can run with either the cam or crank failure.  Not with both failed though! Be odd if they both failed together...

Double check the charging voltage.

 :-/

[JamesV6CDX]

Might help to clear the codes and see what returns...

[smity]

http://cgi.ebay.co.uk/VAUXHALL-CRANKSHAFT-SENSOR-CRANK-ASTRA-OMEGA-VECTRA_W0QQitemZ150197183137QQihZ005QQcategoryZ10404QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

http://cgi.ebay.co.uk/VAUXHALL-CAMSHAFT-SENSOR-CAM-CAVALIER-OMEGA-VECTRA_W0QQitemZ150197182427QQihZ005QQcategoryZ10404QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Brand new ones if do need them.

Nothing to do with me just came across them.  

[Craig_R]

Strange thing is, the 4 pot can run with either the cam or crank failure.  Not with both failed though! Be odd if they both failed together...

Double check the charging voltage.

 :-/

Will Do in the morning when its nice and light again as i have to put the cambelt cover back on and i dont fancy doing that in the dark.
Why would the charging voltage make a car just cut out when driving if its to low ? and flag up the codes ?

James I cant reset the codes no way of doing it no poor mans tech 2 but ill give the 20 clear starts a bash tomorrow morning.

Could I still Drive 250miles with one of the sensors out, but saying that its backfiring quite bad on gas when i put my foot down and i dont fancy 250miles of that.

I checked TIS and it does say that with either fault code 0335 or 0340 you normaly get them together is this true can one sensor throw the other ?

Thanks smity but i need it running by monday at the latest and the ebay part would never get here on time with xmas post and all so ill have to buy new and i know its going to cost.

Craig

[JamesV6CDX]

It may well drive, but not recommended or advisable, and if you do so with a miss you could harm the cat...

given that it's a mixer system, I expect that backfired through the inlet when the engine management had a wobbly....

[Craig_R]

It may well drive, but not recommended or advisable, and if you do so with a miss you could harm the cat...

given that it's a mixer system, I expect that backfired through the inlet when the engine management had a wobbly....

well its doing it all the time i put my foot down under load now only on LPG must have somthing to do with one of these darm sensors, which would you guess it is james Crank Or Cam ? Or is it both ?

[Kevin Wood]

Why not pull the plug on one of the sensors? If the ECU has decided it's breaked it'll be ignoring the output from it, so it'll make no odds. If it's the only one that's working, the engine'll stop.

Repeat for the other sensor to confirm.

Kevin

[Craig_R]

You Clever Man Kevin  

Ill Give that a shot in the morning Mate Thanks sooo Much such an easy way of finding out now why oh why did i not think of that

Noone has said my timing looks out in the photo so ill take that as its ok  

Thanks Again Kevin  

Craig

[speakingclock]

If It's an open mixer system, a weak mix will cause mire backfires funnily enough. Try half a turn at the knurled adjustment insert on the gas inlet pipe. On that note if it's a closed system and the O2 sensor has given up, this would effect the mix on the inlet pipe. Also check the airfilter isn't blown back into the bottom of the filter box, if it is you'll find the joining clips on the motorway.  If the air filter is displaced it could have an effect at the MAF sensor.  

Mine's been running rough with a us cam sensor and MAF but still running and as you say in the limp mode unwilling to rev over 4500rpm but would easily rev to the red line on gas. Changed them both today and its fine now.

I hope this helps. Merry Christmas to you and yours. Good luck in getting home.

Tony