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[Tony]

Hi All

I am new here, i hope that this is in the correct section.

Ok i have a lefthand drive German Omega B estate 2.0L 16v Ecotec, 1995, 85,000 miles.
Driving the other night, everything was normal, then the dash light came on, the picture of an engine with a lightning strike in the middle. I guess this is the one that tells me to go to Opel and let them plug my car into there computer to see what is wrong with it, at a very high cost no doubt.

Anyway with this light on all seems fine, UNTIL i hit 4500 revs and then it stutters like a pig. It has done this in 1st 2nd and 3rd gears (i have not tested 4th and 5th as i was almost home) once it stutters i change gear and it drives as normal, like a dream. All though it does seem a bit guttless at the lower end, very flat spotty from pull off, but once going it is ok I also noticed that the engine temp was a little higher that normal it was reading 95° instead 0f 90°, i don't know if that is relevant or just coincidence.


Thanks for your help on this.

Tony

[TheBoy]

I'm guessing cam sensor, but being a 1995 model, do a paperclip test (free way of reading the fault codes). Check the FAQ section for how to do, and post results back (basically shorting to pins with paperclip and counting the flashes on the dash)

[The Barge Captain]

I had a similar sounding fault on my old 2.0 - turned out to be the crank sensor. There are 2 or 3 different types so if you can remove it you should be  able to get the GM part number off of it

[Tony]

Hi all

Ok just went out for a drive,  
The car is running hotter that usual it goes up to about 98° then drops to 95° and so on, it never used to get past 90° or so maybe just coincidence???
I have just tried the paperclip test, shorting out pins 4 and 6 but i get no reaction, the light just stays on, no flashing what so ever, i have tried with engine running, and not running.
Any ideas on where i go from here?

Thanks again for your time.

Tony

[nixoro]

Hi all

Ok just went out for a drive,  
The car is running hotter that usual it goes up to about 98° then drops to 95° and so on, it never used to get past 90° or so maybe just coincidence???
I have just tried the paperclip test, shorting out pins 4 and 6 but i get no reaction, the light just stays on, no flashing what so ever, i have tried with engine running, and not running.
Any ideas on where i go from here?

Thanks again for your time.

Tony

Try shorting pins 5 and 6

Is it the 16 pin test plug you have in the fuse compartment if the same as mine you dont need the engine running you just need the key turned so the dash lights appear.

To help confirm the codes here is a website which explains the method and what the codes mean.

http://www.topbuzz.co.uk/info/fault_codes/fault_codes.htm

[Tony]

Hi

It is the 16 pin plug, but the first couple of hole in it look empty. i will try shorting pins 5 & 6 and see what that gives.

Thanks

Tony

[Tony]

Hi

Ok this is what i got with just the ignition switched on

Flash = *
pause = --

*--**--*--**--*--**--*********--*--*********

so i got 9 flashes sequence then a gap the one flash then a gap the 9 flashes.
I think that i read it all correctly

I have the list of fault codes here in front of me, downloaded from topbuzz, but the list starts at 12 and goes on to 98, so i am wondering how to translate the flashes i got in regards to the list i got.
If it is *--********* then i guess that it is fault code 19 which is

"Incorrect Revs Per Minute (RPM) signal (cranksharft sensor)       Incorrect Signal, Check Sensor"

So if any of you can pick the bones out that info, GREAT  

Thanks for your time

Tony

[JamesV6CDX]

It's pointing to a failed crank sensor I reckon

Not a hard job to do, especially on a 2.0.

[nixoro]

It's pointing to a failed crank sensor I reckon

Not a hard job to do, especially on a 2.0.

Providing it not got AC only it can get fiddly  

[Tony]

Good that is what i like to hear.

Where would i find that sensor, as i can't see anything about it in the Haynes manual?

Is it worth checking the connections of it first?
 

Tony

[nixoro]

Hi

Ok this is what i got with just the ignition switched on

Flash = *
pause = --

*--**--*--**--*--**--*********--*--*********

so i got 9 flashes sequence then a gap the one flash then a gap the 9 flashes.
I think that i read it all correctly

I have the list of fault codes here in front of me, downloaded from topbuzz, but the list starts at 12 and goes on to 98, so i am wondering how to translate the flashes i got in regards to the list i got.
If it is *--********* then i guess that it is fault code 19 which is

"Incorrect Revs Per Minute (RPM) signal (cranksharft sensor)       Incorrect Signal, Check Sensor"

So if any of you can pick the bones out that info, GREAT  

Thanks for your time

Tony

Just re read your first post and judging by the year of the car I would say the code is right, are you sure its a 16pin socket and not 10 only I always thought the 16pin used the p codes. 10 pin used normal codes for the Simtec 56.0 or 56.1.

[Tony]

Hi

No it certaintly did not start with ten flashes, it started with 1 flash the pause the 2 flashes, it did that sequence 3 times before flashing the 9 times.

Engine was not running.

Tony

[nixoro]

Hi

No it certaintly did not start with ten flashes, it started with 1 flash the pause the 2 flashes, it did that sequence 3 times before flashing the 9 times.

Engine was not running.

Tony

Go with the crank sensor code, to me it sounds right.

Good luck with fixing does your car have Airconditioning?

The crank cable runs across the top from the left where it connects to the right and down then sensor plugs in behind the AC compressor (if applicable) and PAS pump.

[STMO123]

Correct me if I'm wrong people, but, with the engine not running, your'e gonna get the crankshaft fault code anyway. Try again with the engine running.

[nixoro]

Correct me if I'm wrong people, but, with the engine not running, your'e gonna get the crankshaft fault code anyway. Try again with the engine running.

Fair point never thought of that one.

Tony do you get the same codes come up with the engine running at all.

STM0123 I see what you mean but with some systems like the one on mine I dont get the crank sensor code flash up with the engine off and the test doesn't work with the engine running.