vq~gangsta
Resident science geek
- Joined
- Oct 1, 2005
- Messages
- 261
- Reaction score
- 7
- Points
- 18
- Age
- 42
- Location
- Adelaide
- Website
- www.mbs.adelaide.edu.au
- Members Ride
- VE 3.0 SIDI ex-cop
My VQ has this wierd problem on gas. It works perfect when on petrol, so it's definately the gas playing up.
Every now and then (every day or two) the car sort of cuts out while it's running on gas, and starts coughing and spluttering and looses about 90% power. When i put my foot into it the engine just about cuts out completely, like it's lost ignition almost.
The car will sort of drive OK with minimum throttle, but If i take my foot off the throttle all together and stop, or put it in neutral, it will often stall, especially if i don't give it time for the IAC to up the revs.
Strangely enough, eventually (within 5 minutes) the problem just disappears, and like a snap of the fingers the car leaps back into life like there was never anything wrong with it. I've been trying to work out what specifically makes it good again. Sometimes low throttle driving does it, today it came good when i got up to 70 and started cruising in overdrive.
One thing i have worked out is that pumping the throttle, or heavy throttle doen't help. Feathering it a tiny bit, or just leaving it to idle for long enough seem to be the best remedy i've found. If it really plays up i can flip it to petrol and drive fine, then i can just flick it back to gas a few minutes later and sometimes it comes good again. For all I know, it just comes good again after a random period of time, despite what i do to it.
I did notice once that when it was really playing up, it came good again when i was fiddeling with the idle air mixture screw on the LPG converter (when i screwed it all the way in). Since then i've taken the screw out, cleaned out the inside with carby cleaner, then it didn't have the problem for a few days, but then it started doing it again.
About a month ago I cleaned it out again with start ya bastard and again it came good, but only for a few days. A week later i took the screw out again, and noticed that the spring inside it had gotton all twisten and caught up in the gas convertor.
After realising that the spring was turning with the screw, i lubed up the brass ball on the top of the spring with some vas (shame on your dirty mind!) so that the spring wouldn't stick to the screw and turn with it.
Well i tell ya i thought i had it licked then. It ran like a bloody beauty... for about 10 days (a new personal record) and now it's back to acting like a spoilt little bitch again.
:bang:
HELP ME!!!!!
:ranting:
Every now and then (every day or two) the car sort of cuts out while it's running on gas, and starts coughing and spluttering and looses about 90% power. When i put my foot into it the engine just about cuts out completely, like it's lost ignition almost.
The car will sort of drive OK with minimum throttle, but If i take my foot off the throttle all together and stop, or put it in neutral, it will often stall, especially if i don't give it time for the IAC to up the revs.
Strangely enough, eventually (within 5 minutes) the problem just disappears, and like a snap of the fingers the car leaps back into life like there was never anything wrong with it. I've been trying to work out what specifically makes it good again. Sometimes low throttle driving does it, today it came good when i got up to 70 and started cruising in overdrive.
One thing i have worked out is that pumping the throttle, or heavy throttle doen't help. Feathering it a tiny bit, or just leaving it to idle for long enough seem to be the best remedy i've found. If it really plays up i can flip it to petrol and drive fine, then i can just flick it back to gas a few minutes later and sometimes it comes good again. For all I know, it just comes good again after a random period of time, despite what i do to it.
I did notice once that when it was really playing up, it came good again when i was fiddeling with the idle air mixture screw on the LPG converter (when i screwed it all the way in). Since then i've taken the screw out, cleaned out the inside with carby cleaner, then it didn't have the problem for a few days, but then it started doing it again.
About a month ago I cleaned it out again with start ya bastard and again it came good, but only for a few days. A week later i took the screw out again, and noticed that the spring inside it had gotton all twisten and caught up in the gas convertor.
After realising that the spring was turning with the screw, i lubed up the brass ball on the top of the spring with some vas (shame on your dirty mind!) so that the spring wouldn't stick to the screw and turn with it.
Well i tell ya i thought i had it licked then. It ran like a bloody beauty... for about 10 days (a new personal record) and now it's back to acting like a spoilt little bitch again.
:bang:
HELP ME!!!!!
:ranting: