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[Kevin Wood]

Hi Kevin the gas fitter connected to laptop and told me he was shutting each injector down individually to diagnose  the fault,but could of been filling me with crap for all I know(thats why Im a plasterer and not a mechanic)But rang Daz (loo-knee) and got this fitter to talk to him about his diagnoses,so back to Dazs tomorrow to try and rectifie the fault.

That makes sense, and is what I would have done. So, the outcome of this was that he thought cylinder no.3 was causing the misfire?

If that cylinder is OK on petrol but not on gas it really points to the gas injector for that cylinder (probably clogged). I'm surprised that he didn't fix that himself having done the diagnosis, TBH. It's clearly a problem with the conversion he's just supplied.

Kevin

[Darth Loo-knee]

This bloke on the phone today said that there was a missfire on cylinder number 3, I asked how he knew this and he said that he could shut down and check each cylinder. He said that there was again a spark plug lead that had yet again come off the dispack and when he put it back on again it was arking onto the Vectra cam covers that someone has fitted on this car.
The spark plug leads actually seem to be slightly to short, as it is difficult to press them far enough into the plug well.
I am wrong in thinking that vectra plug leads are slightly longer than omega leads?

[Darth Loo-knee]

Hi Kevin the gas fitter connected to laptop and told me he was shutting each injector down individually to diagnose  the fault,but could of been filling me with crap for all I know(thats why Im a plasterer and not a mechanic)But rang Daz (loo-knee) and got this fitter to talk to him about his diagnoses,so back to Dazs tomorrow to try and rectifie the fault.

That makes sense, and is what I would have done. So, the outcome of this was that he thought cylinder no.3 was causing the misfire?

If that cylinder is OK on petrol but not on gas it really points to the gas injector for that cylinder (probably clogged). I'm surprised that he didn't fix that himself having done the diagnosis, TBH. It's clearly a problem with the conversion he's just supplied.

Kevin

Kev, I said the same thing to this bloke on the phone but he said that gas is far harder to burn than petrol, and that this number 3 cylinder spark wasn't strong enough to burn the gas.... although it burns the petrol fine...... He claims that its and ignition problem, either the dispack, leads or plugs.........
I have fitted brand new Vauxhall plugs, so will try a set of Vauxhall leads like he has suggested, then if that doesn't work I think the knobhead should eat the car

[Kevin Wood]

Kev, I said the same thing to this bloke on the phone but he said that gas is far harder to burn than petrol, and that this number 3 cylinder spark wasn't strong enough to burn the gas.... although it burns the petrol fine...... He claims that its and ignition problem, either the dispack, leads or plugs.........
I have fitted brand new Vauxhall plugs, so will try a set of Vauxhall leads like he has suggested, then if that doesn't work I think the knobhead should eat the car

Hmm. Is the misfire there right from idle? (presumably it is, for him  to have diagnosed it this way)

At idle it takes very little spark energy to light either fuel. If it was struggling to light the LPG at idle there would be no chance of driving the car under load on either fuel without a misfire. If the spark is a bit weak for LPG it would only be noticeable under load, IMHO.

My money is still on an LPG injector. Thing is, he could easily have verified this by swapping that LPG injector to another cylinder and seeing if the misfire followed it.

Kevin

[Robski]

Hello all any help would be greatly appreciated,Re not running correctly on gas is now sorted out,been at Dazs(loo-knee) today changed the dis pack,HT leads for original Vauxhall leads this sorted the  issue of not running on lpg.Before I left Dazs we went for a run everything was as it should be on petrol and gas(happy days at last ).Set off home on the M6,10-15miles into the journey the EML came on ,rang Daz he told me to do a paperclip test when I got home which I have and now I have codes 135 and 132,anyone any ideas???

[RobG]

O2 sensor driver`s side. First one in the exhaust from manifold. Check for loose connector, frayed wire etc

[Robski]

RobG would that be like a bolt thing with wires coming out the exhaust,if so looks intact to me

[ians]

check the condition of the wires all the way up looking for sharp kinks or places where it may have been nipped or otherwise damaged.

[Robski]

Thanks will check tomorrow(darts match tonight)but will the car be ok to use tonight??

[RobG]

Thanks will check tomorrow(darts match tonight)but will the car be ok to use tonight??

Yep

[Robski]

cheers rob

[Kevin Wood]

132   Exhaust Gas Recirculation (EGR) Valve Feedback Incorrect Signal
135   Telltale (Checklight) Voltage Low

From Here: http://www.omegaowners.com/forum/YaBB.pl?num=1160152415

Looks more like a sticking EGR valve unless I've missed something?

Kevin

[RobG]

132   Exhaust Gas Recirculation (EGR) Valve Feedback Incorrect Signal
135   Telltale (Checklight) Voltage Low

From Here: http://www.omegaowners.com/forum/YaBB.pl?num=1160152415

Looks more like a sticking EGR valve unless I've missed something?

Kevin

Doh. Thought I was looking at OBDII codes

[TheBoy]

132   Exhaust Gas Recirculation (EGR) Valve Feedback Incorrect Signal
135   Telltale (Checklight) Voltage Low

From Here: http://www.omegaowners.com/forum/YaBB.pl?num=1160152415

Looks more like a sticking EGR valve unless I've missed something?

Kevin

Doh. Thought I was looking at OBDII codes

they are all 4 digit

[Robski]

Hi all regarding my 132 and 135 fault code had a look at  the o2 sensors today all looked good no kinked or loose wires etc,so cleaned the EGR with carb cleaner,started car up and bingo out went the EML.Thanks to evereyone who gave advice