Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: alan36 on 25 January 2011, 19:21:09
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hi all any help would be great firstly after reading on here for sometime i have changed the cam sensor genuine vx,coil pack,maf sensor,and still had the light coming on but car it self was behaving but the light was staying on so i took it onboard to change the crank sensor now the car has gone into permanant limp mode since ive changed the crank sensor,i have 4 error codes on machine 2 for gearbox, crank sensor, and rpm signal any advice plz
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[movedhere] Test Zone [move by] Jimbob.
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Right, just cos youve changed parts, it doesnt mean they are working, new does not guarantee that unfortunately.
Youve changed a lot of parts, and therefore added a lot of unknowns.
The main sensor to cause grief on the 2.2 is the CAM, which also throughs up other spurious codes all too often.
Do you still have any of your old parts to try swapping back with?
Do you have your own computer, or using someone elses? be nice to clear all codes and start again.
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hi there jimbob i have cleared all error codes with obd machine the problem seems to be since ive fitted the new crank sensor i have also been told that the atf in the gearbox could be low and that the selector switch could possibly do with a clean is this true the cam sensor is a genuine vx one fitted as advised i do have the old crank sensor and cam sensor when i brought the car the eml light and the car and spanner light was on i fitted the new maf sensor and the eml light went out if that helps
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Right, you`ve cleared all the codes. Have you started & driven it a short distance to generate a "present" code (as you say it`s in limp mode)
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hi rob i cleared the codes as soon as i start the car the light comes on and it goes straight into limp mode
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So have you checked for new (present) codes?
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i have crank sensor code,rpm signal code,and 2 p1700 codes
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the car is out front and i have the code reader here would it help if i get the codes quick and post them to you
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Refit all the original bits and start again. Were the parts you fitted genuine Vx parts or aftermarket?
Where are you?
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Right, you need to double check all wiring & connections on cam & crank sensors. P1700 is a service request for the autobox. Ideally you need to get box codes read as well but an ATF check/change would be a good starting point
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the cam sensor and maf sensor are vx the crank is aftermarket
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rob ive checked all wiring and it seems to be fine cleaned all connections etc,the problems have got worse since i changed the crank sensor
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When my cam sensor went i had the P1700 as well ... something about " MIL request from Transmission " or something along those lines , cant remember what it was exactly but that went when i did the cam sensor ... is it a possible duff sensor :-/
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rob ive checked all wiring and it seems to be fine cleaned all connections etc,the problems have got worse since i changed the crank sensor
Because it`s aftermarket (normally crap). Stick the original one back on and see what happens
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the cam sensor was fitted about a week ago and is from vauxhall so don,t no but i suppose it could be possible
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the crank is aftermarket
Mmmmm ... ::)
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thanks rob i will remove the crap aftermarket clean my original and put that back but as for the gearbox do u think it could be low on fluid
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the crank is aftermarket
Mmmmm ... ::)
my initial thought too , but I know nothing about 4 pots :-/
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Wouldn`t hurt to check the fliud level http://www.omegaowners.com/forum/YaBB.pl?num=1152783586
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4 pots will run with a broken crank sensor but like a bag of spanners.
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the crank is aftermarket
Mmmmm ... ::)
my initial thought too , but I know nothing about 4 pots :-/
You know that they are only two thirds of a proper engine (allegedly) :D
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4 pots will run with a broken crank sensor but like a bag of spanners.
is that why it now has a spanner on the dash! ;D ;D
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andy b it was running fine before i did the crank sensor it was changed purely because i couldn,t get rid of the light but i think that could be more to do with the level of fluid in the box or service rather than the crank sensor many thanks for all your help i will change and start again
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what can i use to clean the old crank sensor up with
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what can i use to clean the old crank sensor up with
I believe you're on a hiding to nothing trying to revive an old crank sensor. :-/
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one of the other guys on here suggested i put it back what do u think if the car was running fine before i put this aftermarket in all that was wrong was the car and spanner light was on so sorry so it could be that it was more gearbox related
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Before you changed the crank sensor were you getting an 0335 code
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rpm signal incorrect, and 2 p1700 codes i do believe
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each time we cleared the error codes it would let me do possibly 4 miles the flick the light on then someone suggested it could be the crank sensor after already changing the cam sensor
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Definitely 0335 or were you getting 0340
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rpm signal incorrect thats what it read on machine
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rpm signal incorrect, and 2 p1700 codes i do believe
I think one of the sensors is not working .... im sure the gearbox codes are caused by the sensors telling the box to go limp ( pardon the pun ;D )
As i said before when my cam sensor went i had the same P1700 and limp mode ... im sure the box is ok hopefully:-/
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so got to be the aftermarket crank sensor i put in
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rpm signal incorrect thats what it read on machine
Crank sensor then. Does it rev past 4-4.5K or is it being limited
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it did with the one i took out it wont with the aftermarket
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rob g do u have a number i can ring you on plz
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i will put the old sensor back in see what happens nothing to lose i guess
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Refit all the original bits and start again. Were the parts you fitted genuine Vx parts or aftermarket?
Where are you?
As lee said Alan, this is the best thing to do before anything else, it puts you back in the original position you were in & you can then faultfind in sequence until you find the real culprit instead of changing all & sundry & going round in circles. Clean the original crank sensor with some meths or other alcohol based cleaner which wont leave a residue when wiped off. :y
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Alan - can you stop hitting alert moderator please, thats just for if you need to bring something to our attention, like complain, highlight rule breaking etc.
Cheers
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On reading this, everything points to the cam sensor, when you say you fitted a genuine one, did you purchase it from a Vx dealer, or someone selling Vx parts?
The crank sensor needs to be swopped back with the original, as this is causing other faults.
My money is still on cam sensor, having been through this headache myself.
The gearbox on a 2.2 will go into limp mode, if the ECU thinks there is an engine fault.
A lot of places sell 'genuine' Vx parts, but the only place to get genuine is from a Vx dealer.
Where abouts in the country are you?