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[star_whites]

The Haynes manual does not tell you how to change a Crank Sensor. To be honest everything Ive wnted to do since I bought it are not included within the Haynes Manual (What a waste of money!!)

[JamesV6CDX]

By the way, she wont run when the crank sensor is unplugged as I tried and she just turned over and over without firing  :-?

Interesting, my 2.0 DEFINATELY runs without the crank sensor plugged in, regardless of what anyone else says

I wouldn't have thought it was technically possible, but there you go.

The fact that it won't run without it plugged in, means it's talking to it - maybe it's getting a naff signal for some reason - what condition is the wire in?

Of course, we may be nowhere near the mark....

[star_whites]

The wiring to it (that I can see, as compresor is in way of other end) is in pretty good condition. no kinks or splits.

Still making me wonder if cam sensor could be the problem. I had to cut the wiring to fit the new sensor and due to speed and as a temporary measure I fitted it with terminal blocks until I found that it was this that was the fault and then I planned to solder it together. Is it possible that it wont be feeding a proper signal back through the terminal blocks???

[JamesV6CDX]

The wiring to it (that I can see, as compresor is in way of other end) is in pretty good condition. no kinks or splits.

Still making me wonder if cam sensor could be the problem. I had to cut the wiring to fit the new sensor and due to speed and as a temporary measure I fitted it with terminal blocks until I found that it was this that was the fault and then I planned to solder it together. Is it possible that it wont be feeding a proper signal back through the terminal blocks???

Ahhh.... may be onto something here!

Get rid of the connector block... and solder the wires together, then protect with heatshrink.

Make sure this is perfect before investigating the crank sensor.

One thing I learned from Mark - dodgey connections on an engine management loom just will not do!!

Once you've done that, post up the results.

Out of interest, why did you have to cut the wires? Was the other sensor the wrong one? A bit concerning.... maybe the root of the issue...

I'd be interested in Mr DTM's view on this thread...

[Omegatoy]

may be barking up the wrong tree here but have never known a lambda sensor to survive a blown head gasket!! the antifreeze chemicals kill the precious metals in the lambda rendering it useless!!!
Omegatoy

[JamesV6CDX]

may be barking up the wrong tree here but have never known a lambda sensor to survive a blown head gasket!! the antifreeze chemicals kill the precious metals in the lambda rendering it useless!!!
Omegatoy

I guess it depends on how early you caught the blown HG... I've known plenty to survive (on Rovers).. and also on an Omega 2.0.

I'd have also thought that it would have a fault code for the lambda area, rather than RPM related codes.

I do like your train of thought, and it's something I'll certainly keep in mind for future.

In this case though, I still think that the issue is a dodgey connection.

We've already sorted out the Gearbox limp mode problem by reseating the big blue plug, and I bet that the current EML issue is also a dodgey connection, most likely in that block connector!!!!!

[star_whites]

The reason I had to cut the wires was that the new Cam Sensor had a different connector block. At first I could not fit it as the colours on the cable were different but got around that by lifting the rubber sheave to alo me to connect the corect cable to the correct cable.

I did think that they have issued the wrong part but vauxhall say not. The thing that made me wonder was a) the different connector block & b) the new sensor is slightly taller than the old sensor. However I do also have a second hand sensor that was the same as the original that I was told did still work as it came off a runner!

[JamesV6CDX]

The reason I had to cut the wires was that the new Cam Sensor had a different connector block. At first I could not fit it as the colours on the cable were different but got around that by lifting the rubber sheave to alo me to connect the corect cable to the correct cable.

I did think that they have issued the wrong part but vauxhall say not. The thing that made me wonder was a) the different connector block & b) the new sensor is slightly taller than the old sensor. However I do also have a second hand sensor that was the same as the original that I was told did still work as it came off a runner!

There ARE indeed 2 x different types of cam sensor connector. This may be the problem, I don't know for 100% if the different types of sensors are interchangable....

VX Monkeys talking crap as usual....

[star_whites]

Well it looks like I have the wrong one then dont it. I bet they wont take it back either as ive cut the cables and thrown the packaging away and to be honest possibly the bill as well!!!!

Will have to try fitting the other one again and solder those wires and see what happens then!

[JamesV6CDX]

Well it looks like I have the wrong one then dont it. I bet they wont take it back either as ive cut the cables and thrown the packaging away and to be honest possibly the bill as well!!!!

Will have to try fitting the other one again and solder those wires and see what happens then!

Yep, fit a 100% known good cam sensor, and solder the wires properly, and we'll go from there. Smart money says this will cure it!

Why didn't you tell me about this cam sensor incompatibility at the start of the thread  :-/
I wouldn't have started talking about the crank sensor then  

Never mind... do as above, making sure the connections are really good, and it may well solve this one. As described above, you currently have an ECU rev limit applied at around 4k, which is often cam sensor related.

If that doesn't do any good, next step will be checking for consistency and / or shorts between the ECU connector and cam sensor plug to identify / eliminate and loom issues.

Don't worry, the answer will be a simple one, and we're all here to help

[star_whites]

Well thank you for your assistance James and I will let you know how I get on once I get another sensor and solder them. THink I will leave the Crank Sensor alone for the time being due to how arkward it is lol

Never thought about it not receiving a signal from the connector block.  

Will prob be a couple of days now but hopefully not too long I WANT MY CAR BACK lol

[JamesV6CDX]

Well thank you for your assistance James and I will let you know how I get on once I get another sensor and solder them. THink I will leave the Crank Sensor alone for the time being due to how arkward it is lol

Never thought about it not receiving a signal from the connector block.  

Will prob be a couple of days now but hopefully not too long I WANT MY CAR BACK lol

Good man

Please do post up the results, good or bad.

I'll PM you my phone number in a bit, you can give me a call when on the job, if you hit any snags.

[star_whites]

Ok news update.

Ive removed the incorrect supplied cam sensor(thanks vauxhall who wont let me return it) and fitted a sensor off a runner in the breakeryard. I trimmed the wired back twisted together, solded and covered them in heat shrink protector.

Started car and.............................................................................................................................
..................................................................................................................................................................................................................................................................................................................................................................................................................................................................No Difference.

Plus to top it off the autobox warning is back on the dash and she sounds like a pig!

[JamesV6CDX]

Ok news update.

Ive removed the incorrect supplied cam sensor(thanks vauxhall who wont let me return it) and fitted a sensor off a runner in the breakeryard. I trimmed the wired back twisted together, solded and covered them in heat shrink protector.

Started car and.............................................................................................................................
..................................................................................................................................................................................................................................................................................................................................................................................................................................................................No Difference.

Plus to top it off the autobox warning is back on the dash and she sounds like a pig!

Will it rev past 4/5000rpm now? Are all your spark plugs tight?

[star_whites]

Nope, revs are even worse now, really stuttery after 2500.

All plugs are nice and tight all leads securly fitted and all wiring connections made!