|
LPG, CNG & LNG - General Info and Issues Share experiences and problems |
Information |
|
2003 S80 bi-fuel won’t switch to LPGViews : 2735 Replies : 16Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Feb 7th, 2018, 05:34 | #11 |
Premier Member
Last Online: Yesterday 19:56
Join Date: Feb 2012
Location: Preston
|
Just remembered, the system won’t switch if it senses a fault - so could be the stepper!
What is the light on the ‘petrol’ switch doing when you try and switch it to gas? the stepper will throw a fault code which you can check with Vida if you have access to that. |
Feb 9th, 2018, 16:12 | #12 |
Classic P80 1999 BiFuel
Last Online: Mar 6th, 2024 00:34
Join Date: Aug 2012
Location: 48mph Middle Lane M4
|
The OP has sent me his stepper and I can categorically say the stepper is faulty. Dead-on-arrival. The OP's car could never run with this stepper.
Probably the original issue. However I hear tales that the previous owner was a baboon. Ripped everything off the thing, now anyone's guess. There could be a heap of other probs... Anyways, his stepper has been properly fried. About 1 in 6 come to me in irrepairable condition. This looks like one of those. I will have another go...
__________________
Bifuel V70 Classic 1999 [The Old Grumpy in the Corner, "When I was a lad... blah, bl**dy blah."] |
Feb 12th, 2018, 20:33 | #13 |
Always listen & learn!
Last Online: Mar 13th, 2023 19:32
Join Date: Dec 2013
Location: Winchester + Malaga
|
I read somewhere 18 deg is the magic temperature for switch over but that would be head temperature not ambient. Mine switches within 30 secs of running even in near zero temperature.
__________________
264 V8 5.0L V40 BiFuel, she's gone, she's dead......Oh well! |
Feb 15th, 2018, 13:41 | #14 |
Classic P80 1999 BiFuel
Last Online: Mar 6th, 2024 00:34
Join Date: Aug 2012
Location: 48mph Middle Lane M4
|
My Necam system. On a summer's day from cold about 20 secs, at freeeeeezing about 1min 30secs.
Warm? 10 secs... ish.
__________________
Bifuel V70 Classic 1999 [The Old Grumpy in the Corner, "When I was a lad... blah, bl**dy blah."] |
Feb 28th, 2018, 20:38 | #15 |
New Member
Last Online: Apr 18th, 2024 15:34
Join Date: Jan 2018
Location: Newark
|
Thanks for everyone’s input it’s greatly appreciated , been off grid for a few weeks , as CNG has mentioned the stepper is potentially fubar ed so progress is being made , thank you so much for taking time to comment on this for me and anyone else who my have similar issues , I’ll keep you posted of progress made .
|
Mar 7th, 2018, 20:45 | #16 |
New Member
Last Online: Apr 18th, 2024 15:34
Join Date: Jan 2018
Location: Newark
|
Sit rep !
So now fitted a working and modified stepper curtesy of CNGBiFuel as the last one was buggered and had some excellent advice (top bloke) , but she’s still putting up a fight , still won’t switch over to LPG , been to a local garage to have it plugged in and found their system wouldn’t read the problem being an intermittent fault with the EMU relay , switched that out and got codes reading :
6310 Fuel shut off valve faulty signal 4400 Gas system fuel shut off valve , retardation Fitted a new solenoid from classic swede but there’s no power to it nor power to the other solenoid at the base of the distributor, these both work when attached to 12v so I’m confident they’re working , its just where they take their que from that’s the baffling bit , been kinda thinking the temperature sensor but that must give information to other stuff surly ,so if that was at fault the other gubins wouldn’t function possibly, maybe or not ! Dunno, going to plug away at it some more tomorrow if nothing else I’m learning all the time and building up quite a personalised LPG owners manual from the information I’ve copied and pasted from the feed back I’ve had here (hope you guys don’t mind) , thanks to everyone’s continuing input I can’t begin to say how grateful I am . |
Mar 15th, 2018, 08:51 | #17 |
Classic P80 1999 BiFuel
Last Online: Mar 6th, 2024 00:34
Join Date: Aug 2012
Location: 48mph Middle Lane M4
|
I have a wiring diag & manual for S80 Bifuels, unfortunatley it's not in English, it's in (don't mention the war... ). Only got it a few days back, and I've not had a chance to scan or translate it. My (beach towels at the ready ) broken German can see relay FMA2 is the master power relay to all that is Necam. In turn FST02 fires the DFCO. If those relays are not firing (or the output for the CPU is not there because the temp stat is not firing an output), your car won't switch, but the fault is usually the stepper. That theory was blown sideways by a bloke I'm dealing with now. In his, he'd had some baboon of a previous owner hacking at his car.
__________________
Bifuel V70 Classic 1999 [The Old Grumpy in the Corner, "When I was a lad... blah, bl**dy blah."] Last edited by CNGBiFuel; Mar 15th, 2018 at 11:15. |
Tags |
bi-fuel spares, lpg forum, lpg section |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|