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[feeutfo]

Still on going.

Codes are

0300
0300
0420 (sigh)
0173
0170

Trying another maf.

Car runs absolutely fine. Except when first switching to gas when engine is cold.

Starts fine.
Runs on petrol for the alotted 40 seconds/whatever the temp setting is.
Switches to gas, turns grumpy, brings the light on.
Turn of LPG.
Stop, re start the engine. Carry on all is fine.
Wait til the temp gets above 80 on the dash.
Switch to gas. And it's fine all day/until the next cold start.

Sometimes it behaves though.

[Lazydocker]

I've been getting some grumpiness lately too, but I just put it down to my lazy stat

[tunnie]

Raise the switch over temp? Mines little lumpy on first switch over when its been cold recently....

Whats strange is when it was proper cold (-6 to -18) in Austria was fine   

[doz]

Well if you call my hunting grumpy behavior it seems we all suffer from it

[Lazydocker]

The DBW cars seem to suffer it a little more due to the fact the throttle bodies are moving to control the idle... I might give mine a good clean out when I change the Cam Cover Gaskets and Thermostat and AC Condenser and..........

[doz]

and and and. I know that feeling. Just done diff as old one was knackered and now I can really hear the front wheel bearings rumbling. Oh well

[feeutfo]

The hunting is different. Ie slight rise and fall in idle speed.

"Grumpiness" is slight missfires causing rough running. In my case its bad enough to bring the eml on, raise 0300 multiple random missfires twice (I'm sure there will be loads of missfire codes not present in there too) and cause 0173/0170 fuel trim malfunction on both banks.

Going by the way the engine behaves, these codes are most likely caused during the cold running on lpg below say 70c on the dash. It really should be able to run at 40c , seeing as behaved fine previously, it was fine at 40c switch over in my other car, and, afaik, all the other kits members have here are all fine switching to gas at 40c at least.

So, what causes multiple missfires on both banks and fuel trim malfunction both banks?
Alli can think of is maf, seeing as I've checked for air leaks.

What causes the same symptoms on lpg prior to a warm engine? No idea. Hoping maf, but we'll see.

Iirc, Kev said the maf also reports intake temp as well as volume on the Dbw engines. Maybe the maf temp sensor is fubar...?

[TheBoy]

Increase coolant temp. But you don't want to, do you.

Wonder if playing around with temp multiplier would help.  Is it lean or rich when it gets shitty.

[feeutfo]

Increase coolant temp. But you don't want to, do you.

Wonder if playing around with temp multiplier would help.  Is it lean or rich when it gets shitty.

Nope, don't want to, but I would have to raise it about 70c to get round the issue. It would be a get round, and avoiding the problem though.

Don't know how to tell if its lean.

[TheBoy]

Don't know how to tell if its lean.

Trims.

[TheBoy]

Actually, lamdas will be working by then

[feeutfo]

Don't know how to tell if its lean.

Trims.

Don't have that facility currently.

[feeutfo]

Actually, lamdas will be working by then

Yes it's weird. Seems to go well enough when warm on gas. Fine on petrol at all times, its just getting it warm enough to run on gas. 

[aaronjb]

Don't know how to tell if its lean.

Trims.

Don't have that facility currently.

Borrow my scanner if you want?

[feeutfo]

Don't know how to tell if its lean.

Trims.

Don't have that facility currently.

Borrow my scanner if you want?

If your coming to the curry night, that would be great.