#1: Urgent Help Needed *update page 2* Author: MattyP, Location: PlymouthPosted: Sat May 12, 2012 4:38 am ---- As alot of people will remember I have an issue with my 206 where when the engine is quite warm the engine warning light comes on with a loss power for 2 seconds and then sometimes stalls when the car comes to a halt.
The following has been done to try find out why and cure the problem but with no success
replaced icv
ecu checked for error codes
mobile auto electrician brought in to look at car
throttle body removed and cleaned
icv removed and cleaned
switches/sensors checked and cleaned
new coilpack fitted
picked car up today after all the above was done, after 30mins of driving in the car the warning light came on but the engine did not stall when I had to stop and was still responsive until I got home, where I park at home I have to drive into a turning, stop, reverse back around the corner by 2metres then drive forward so I can park up outside my house and be facing the right way down the road.
When I stopped to reverse, the warning light came on again, the revs dropped and could hear it was struggling to pick up the revs and the engine soon cut out, started it up again without giving it any gas, this time the rev needle was on the 1st indicator above the 0revs until i gave it some gas and it went upto 6000rpm and after a few seconds the revs dropped right down and the engine cut out.
I parked the car and sat there with the engine running, the engine would idle normally, but then less than a minute the engine would die without warning, you can start it again and it leave it, again for under a minute and it would cut out.
The garage that has been looking at the car have said if they replace the throttle switch it might cure it but they can't say for definite. How do you know if the ecu is faulty? Just curious as to why there is no code showing because the mechanic said, if the engine warning light comes on 3 times within a short time it should register a code.
Really need some expertise on this issue because the car is undriveable at the moment and unless the problem is solved the temptation to sell it is growing more and more Last edited by MattyP on Fri May 25, 2012 12:54 pm; edited 3 times in total
#2: Re: Urgent Help Needed Author: Deckchair5, Location: Bath UKPosted: Sat May 12, 2012 6:02 am ---- Intermittent faults are always difficult but I'd be looking for an electrical fault which goes open circuit when the engine gets warmer. A thermal problem, something that may even make the ECU lose power because more often if there's no fault code ever being registered then the ECU may not have been "live" at the time to record it
What could cause that?
Quite a list but
Main battery neg to engine earth
ECU connections
A component shorting to ground at temperature
Fault within ECU
??still a guessing game
Garage should hook up and watch running data as car warms up to spot what happens and work on that otherwise they're just changing stuff and hoping (at your expense). Find the fault and then fix the fault. Even just hooking up a voltmeter to the cigar lighter would give a clue if you have electrical power problems when the fault occurs
#3: Re: Urgent Help Needed Author: paulspug, Location: Spalding lincolnshirePosted: Sat May 12, 2012 8:52 am ---- i had exactly that with a vectra i once owned.Turned out to be the cam belt worn, which was jumping about and knocking the sensors.
#4: Re: Urgent Help Needed Author: MattyP, Location: PlymouthPosted: Sat May 12, 2012 9:01 am ---- I hope not and it shouldn't be as my cambelt was changed that not long ago
#5: Re: Urgent Help Needed Author: Seabook, Posted: Sat May 12, 2012 9:13 am ---- cam position sensor
#6: Re: Urgent Help Needed Author: Gti180Mac, Location: ScotlandPosted: Sat May 12, 2012 9:24 am ---- Cam position sensor +1
What was the outcome???
#7: Re: Urgent Help Needed Author: MattyP, Location: PlymouthPosted: Sat May 12, 2012 9:33 am ----
Gti180Mac wrote:
Cam position sensor +1
What was the outcome???
I can tell the garage it could be cam position sensor
at the moment after the car being in the garage since tuesday its still not sorted
#8: Re: Urgent Help Needed Author: Edward, Location: In the garagePosted: Sat May 12, 2012 10:01 am ---- Car will drive pretty much normally without the cam sensor plugged in!
#9: Re: Urgent Help Needed Author: Seabook, Posted: Sat May 12, 2012 10:04 am ----
Edward wrote:
Car will drive pretty much normally without the cam sensor plugged in!
what about crankshaft sensor then?
#10: Re: Urgent Help Needed Author: Deckchair5, Location: Bath UKPosted: Sat May 12, 2012 11:01 am ---- I'd expect a fault code to be logged if there was a problem with either cam or crank sensor. With a crank sensor fault then you'd have to wait until it cooled right down again before it would start and very often doesn't hot start at all
#11: Re: Urgent Help Needed Author: MattyP, Location: PlymouthPosted: Sat May 12, 2012 11:37 am ---- the engine starts 1st time everytime i have had the fault, could it be a temperature sensor?
#12: Re: Urgent Help Needed *May have found solution* Author: MattyP, Location: PlymouthPosted: Sat May 12, 2012 12:17 pm ---- The garage did say it may be the TPS and have ordered a new 1 @ £123+vat but just found this and it describes some of the faults i've been experiencing
#13: Re: Urgent Help Needed *May have found solution* Author: Seabook, Posted: Sat May 12, 2012 1:04 pm ---- could be; but i would have though you will be able to check that via PP2000; through live data logging you can check the pedal position.
#14: Re: Urgent Help Needed *May have found solution* Author: spike_202, Location: West midsPosted: Sat May 12, 2012 1:56 pm ---- Could you not of got a 2nd hand throttle body and tested it before ordering a brand new one?
#15: Re: Urgent Help Needed *May have found solution* Author: MattyP, Location: PlymouthPosted: Sat May 12, 2012 2:05 pm ---- I haven't paid for anything yet, the garage has had my current tb out of the car and cleaned and it is fine. but having read from the net, symptoms of a faulty TPS it is sounding more and more like that is the problem
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