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[mijfife]

I'm going to have another fiddle tomorrow and if i can't find anything, I'll wait until after the mot on Wednesday when I can give it a good run and see what happens.

Cheers, Jim

[Craig_R]

just a quick thought the Fuel filter

The LPG will have a separate fuel filter

Craig

[mijfife]

Hi Craig, I was going to change the petrol filter tomorrow as well, even boght the fancy pliers to make life easier  

Cheers Jim

[mijfife]

Todays progress report  

Changed the fuel filter and decided to remove the throttle body and fit my spare, all freshly cleaned up of course. I also cleaned the small pipe that screws into the manifold just below the throttle body and connects to the cam cover.
The idle is better, stays steady when warm until you give it a rev and it then fluctuates for a about 5 - 10 seconds before smoothing out again. EML is still on!

I'm thinking about the following course of action. Leave as is until I've mot'd the car and driven it about for a week or so. that should give the ecu time to clear any old codes and leave me with the problem code. I'm pretty certain it's related to the idle management system, is there any other bits of that to check? All vacuum hoses are on and in good condition and from what I can see, they are all in the right place.
getting there but any thoughts??  

Cheers Jim

[JasonH]

I make those codes as:

0130 Oxygen Sensor Malfunction
0505 Idle Control System Malfunction
0110 Air Intake Temperature Sensor
0100 MAF Malfunction

I'd say your problem is with the air intake (perhaps the connectors or wiring).

[mijfife]

Hi Jason,
             I started the car once when I'd forgot to connect the air intake and maf sensors so I think that is why I've got those codes. Lambda was broken for the LPG so I assume that would trigger that one too. That leaves me with the idle control system. going to run the car for a while to try and clear the obsolete codes and see what I'm left with!

Cheers Jim

[nixoro]

Having read back have you cleaned the rear crank breather pipe only this can cause idle problems aswell, cleaned mine out a month or so ago when idle was abit rocky and its been fine ever since, mine was properly coated with coaked on crud and even cleaned the oil seperator not ideal but has helped alot (needs replacing).

Reason I ask is you mention you changed the throttle body and have cleaned the front breathers but no mention of the rear crank breather.

[mijfife]

Hi Nixoro,
              the engine I got had the oil seperator broken when they took it out. I had a look at a couple of other cars in the breakers and they just had a rubber pipe instead of the seperator so I've just fitted that. It was nice and clean.
I'll see how it goes after the mot but as the EML is still lit, there must be some issue with it.

Cheers Jim

[nixoro]

Hi Nixoro,
              the engine I got had the oil seperator broken when they took it out. I had a look at a couple of other cars in the breakers and they just had a rubber pipe instead of the seperator so I've just fitted that. It was nice and clean.
I'll see how it goes after the mot but as the EML is still lit, there must be some issue with it.

Cheers Jim

Ok rules that possibliity out, so you say the Idle is mixed up/down when on petrol but steady when on LPG have you confirmed both lambda sensors are working, I'm guessing it should flick between one or the other when changing fuels.

Have you checked for any damaged cabling from the ICV just wondering whether a frayed cable could be causing the idle isssue (0505 Idle Control System Malfunction).

Have you checked all the joins and breathers are on tight?

[mijfife]

Hi Nixoro,
              I've checked all the breathers etc but not 100% sure about the car's own lambda sensor. I raided this from the car that donated it engine and it looks in good condition. Not sure how to check it tho hence the waiting until the old codes are cleared from the ecu.
One thing I did notice while sitting in the car with engine running today. The idle was nice and steady, then I pressed the brake pedal to engage drive. The idle started to fluctuate. That would point to a vacuum problem somewhere. I'll recheck all the vacuum pipes tomorow before the mot.

Cheers Jim

[Markie]

well its definatly breathing/ filtration problems or air leaks........

not that this hep at this stage as it means fuel, fuel filters, pipes to and box/ sensor relating to air intake....

mot day tomorrow?

[mijfife]

Changed the injector seals today before the mot and double checked call the vacuum pipes were okay. EML still on and still no difference   I noticed that I couldn't blow or suck through the vacuum pipe that goes to the pump & filter located in the left hand inner wing behind the wheel arch liner. Guess that's worth an investigation tomorrow.

Cheers Jim

[HI2DVY]

C'mon Jim, put us out our suspenders... did it pass the MOT???

[mijfife]

Hi H12DVY, yes it passed no problems, posted a thread on the general chat yesterday   got it taxed today and have been enjoying cruising around in Omega luxury The car seems to be running great on lpg and petrol but I've still to get to the bottom of the idle problem  

Cheers Jim

[HI2DVY]

Hi Jim,

Great news about the MOT - and glad to see that you've got your meega running. Its been quite a project and we've all been following your progress with interest!

Can't help with the idle problem I'm afraid but I'm really interested in the LPG performance. Was the car originally a dualfuel or has it been converted? If so where was the tank put and how big is it? I'm thinking of having mine converted because of the mileage I'm doing.

Dave