Landcruiser duel fuel idles high when cold.

Submitted: Friday, Aug 29, 2003 at 01:42
ThreadID: 6903 Views:1756 Replies:5 FollowUps:4
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Hi people, I have a 80 series Landcruiser and when the engine is cold it idles between 1500 to 1800 rpm. I've taken it a LPG specialist and they said alot of people compain about them idling high when cold and there isn't anything to fix it.
I am not convinced, so that why i was hoping someone else out there can tell me differently. :)
I live in Perth and can someone also tell me where a reliable mechanic who can fix me head ache.

Thanks

Regards
Matho
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Reply By: Mad Dog Morgan (Vic) - Friday, Aug 29, 2003 at 01:49

Friday, Aug 29, 2003 at 01:49
DHHooroo
AnswerID: 29529

Reply By: Member - Glenn(VIC) - Friday, Aug 29, 2003 at 08:42

Friday, Aug 29, 2003 at 08:42
Hi Matho,

I too have an 80 Series on LPG, but I cannot assist you I am afraid. One suggestion though is to maybe spray the throttle connections/springs etc near the carby with WD40 or similar lubricants. I do this every couple of months to keep everything moving smoothly.

CheersJust Do It!

AnswerID: 29535

Reply By: Member - Robert (WA) - Friday, Aug 29, 2003 at 09:08

Friday, Aug 29, 2003 at 09:08
what motor do you have
AnswerID: 29539

Follow Up By: Matho - Friday, Aug 29, 2003 at 19:59

Friday, Aug 29, 2003 at 19:59
Hi, the motor is a 1FZ-FE (4500) EFI
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FollowupID: 20703

Follow Up By: Member - Robert (WA) - Friday, Aug 29, 2003 at 21:21

Friday, Aug 29, 2003 at 21:21
there is not much you can do as the revs are controld by the computer
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FollowupID: 20718

Reply By: Member - DOZER- Friday, Aug 29, 2003 at 19:29

Friday, Aug 29, 2003 at 19:29
Gday
Checkout www.lcool.org
Look in the tech pages for the cure
Andrew
94 fzj80wheredayathinkwer mike?
AnswerID: 29588

Follow Up By: Matho - Friday, Aug 29, 2003 at 20:30

Friday, Aug 29, 2003 at 20:30
Cheers, I'll try what it recomends. :)
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FollowupID: 20708

Follow Up By: Member - DOZER- Friday, Aug 29, 2003 at 21:26

Friday, Aug 29, 2003 at 21:26
Put two on first off.
FYI your cruiser will start on Petrol,before switching to gas at a certain time or rpm, so its not gas related.This type of rpm is fairly normal for the 1fz, and it can get bad enough for the timing chain to rattle a bit till oil pressure builds up.
The best way to fix it is to have the injecters done plus a efi tuneup, the cheapest way to fix it is what lcool suggests.
Andrewwheredayathinkwer mike?
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FollowupID: 20719

Reply By: howesy - Friday, Aug 29, 2003 at 20:34

Friday, Aug 29, 2003 at 20:34
Had a dual fuel car for some years , even after I fiddled with it there was always a slight difference between the cold and warm idle but nothing like you indicate. Things to check are the actual converter. There should be a drain plug in the botomto drain away condensation buid up around the diaphram. this should be drained every 6 to 12 months. The other major drama is that it seems that most installers are slap happy when it comes to the plumbing. they cut into your heater hoses without determining the direction of flow. The hose that goes to in of your car heater should have a Y-piece cut into it to feed the "in" on the converter.The out on the converter should then be connected by a Y-piece to the "out" hose from the heater. most of these installers return the converter hose back into the same line because it is easier. The trouble is that unless the heater tap is open the circuit is closed. Without proper water flow the gas does not properly change. You might also open up the water adjustment. These should go a long way to narrowing down the field for you. Good luck
AnswerID: 29598

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