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View Full Version : astra mk4 cam sensor / timing belt fault



estate
9th June, 2010, 09:49 AM
got a mk4 sri here 2.0 16v (x20xev simtec 70), that registers a p0340 (8) code, reset it, and it'll drive fine (did 120 miles in one journey last night), turn the car off and restart and it'll illuminate again :(, now the car i am led to believe has had a vectra engine fitted due to previous engine damage, so i'm wondering if the fault is due to the car running the wrong timing belt set up? could this cause and issue? the vectra belt has a different belt and idlers (waterpump and tensioner is the same), the belt has 169 on the vec belt and 168 on the astra one? going to check the wiring and sensor etc, because i believe they might still be vectra ones too (wrong), but does it sound like i'm on the right track? because the fault can be wiped temporarily, does that mean the sensor is the right one?

Meat-Head
9th June, 2010, 02:01 PM
Word on the street is two type of lumpy stick sensor, check you have the correct one, dude.

laldog
9th June, 2010, 02:04 PM
Check the feeds to the sensor and the signal back as the wires have been known to give problems.

nutloose
9th June, 2010, 07:21 PM
make sure you ONLY USE A GENUINE SENSOR. (do change the connector supplied, the gold contacts were a modification)

My other half has a 2.0XEV and it had P0340 errors. After five attempts with intermotor and other spurious sensors, retiming and changing the belt and restteing the tension etc the final straw was "err indoors" suggest I take it to a proper garage! the omega finally had a genuine one which fixed it.

Meat-Head
9th June, 2010, 09:38 PM
the final straw was "err indoors" suggest I take it to a proper garage! the omega finally had a genuine one which fixed it.

1) Reading your posts you are awesome, 'proper garage' my arse
BUT then again, you can do 10,000 jobs for jo public, then when
you come to your own car it's a right bitch

2) Omega, YUCK.

Think what her indoors meant, was take it to another garage you don't like, and just dump it there, untill they scrap it.

obdmaster
9th June, 2010, 09:55 PM
make sure you ONLY USE A GENUINE SENSOR. (do change the connector supplied, the gold contacts were a modification)

My other half has a 2.0XEV and it had P0340 errors. After five attempts with intermotor and other spurious sensors, retiming and changing the belt and restteing the tension etc the final straw was "err indoors" suggest I take it to a proper garage! the omega finally had a genuine one which fixed it.
100% Agree use a genuine sensor, been through it on an x20xev calibra replaced twice, still same fault checking timing etc etc then scoped sensor and no output got genuine one job done. :giveup:

estate
10th June, 2010, 09:13 AM
turns out the dicks who fitted the engine chopped the plug off the astra loom and soldered the vectra plug on and were using a vectra camshaft sensor, replaced top engine loom with one i had "in stock" and the correct cam sensor and now it's all sorted.

Meat-Head
10th June, 2010, 09:36 AM
turns out the dicks who fitted the engine chopped the plug off the astra loom and soldered the vectra plug on and were using a vectra camshaft sensor, replaced top engine loom with one i had "in stock" and the correct cam sensor and now it's all sorted.

told ya, ner, ner :bounce::bounce:, press the thanks button, if it makes you feel better on all posters in this thread if you want.