eupho Posted January 31, 2006 Report Posted January 31, 2006 Have just changed the brake master cylinder and clearly had to remove air intake and all sensors in that area. Having completed the job the car starts but immediately stalls. The problem is not helped by having no manual, although someone has kindly pointed me in the directions of Peter Russek manuals. The following questions arise: 1 Is it possible that, in disconnecting sensors/battery , I have caused the ECU to malfunction, perhaps by doing things in the wrong order ? I had thought that in any event it would go to the basic 'get you home' default system. I have found a firm (NOT Ford!) who say they can check and if necessary reset the ECU if I remove it. On this model, Jan 97 on a P, does the ECU come up through the dash binnacle, or down from underneath ? 2. The fact that it starts, if only briefly, does this rule out any problem with the engine immobiliser ? The standard Galaxy handbook states that there is a switch under the passengers seat, but there is not one there on mine, although there is a black flat box. Is it elsewhere and a possibility. 3. Any other ideas please? Finally an unrelated problem, My car has had a gas conversion at some point in its life. It is now back on petrol, but the tank is still under the floor and the spare has to be carried in the vehicle. Any suggestions for replacing the cradle for the spare....and does anyone want to buy a tank! Would appeciate all suggestions as the car is needed rather urgently. Thanks in anticipation. Eupho Quote
johnb80 Posted January 31, 2006 Report Posted January 31, 2006 If you put your foot on the accelerator does it keep running i.e. is the fault it just won't tickover? If so, you've probably left a vacuum pipe off the inlet manifold somewhere. Regards - JB Quote
Guest vr6galaxy Posted January 31, 2006 Report Posted January 31, 2006 No fuel cut off switch on the VR6, the box under the passenger is the alarm, courtesy lighting,global closure ECU, keep it dry as it's not cheap! PCM can come out through binicle if you good! TIS, Haynes etc say under but it can be done through! Peter Russek's ok but it mainly covers the OBD1 VR6 dizzy version and not coil pack ignition system as fitted into the Galaxy it also covers more of the Golf VR6 install but it can be handy reference book :rolleyes: as Jb says check all the hoses and plugs around the throttle body intake area, there are a couple of minor hoses that run in the same area! these are for the engine ventilation, if you mix these up or leave them unpluged it can cause a few problems! also check the main intake hose for tears/splits! especially in the conveluted section! as for the LPG tank! why not reinstate the LPG system? or if the system has been removed and you just have the tank left? then the spare wheel whinch will need replaceing! it's a bolt on part get used too fitting it as it seems to be a common failure :blink: Quote
Topbloke Posted January 31, 2006 Report Posted January 31, 2006 sounds like a possible immobiliser problem, was / has the battery been disconected, or are you using a spare / do you have a spare, try that Quote
Guest marcusheawood Posted February 1, 2006 Report Posted February 1, 2006 Nah, immobiliser problem would mean it wouldn't start at all... Sounds like throttle position sensor not connected properly? It'll be electrical unless you disconnected the fuel hoses and reconnected them the wrong way round! Quote
dave_m Posted February 1, 2006 Report Posted February 1, 2006 Could be an immobiliser issue On a Tdi the immobiliser will let the car start but then it dies straight away,not sure on a petrol if it is the same Quote
Mike 666 Posted February 1, 2006 Report Posted February 1, 2006 Glad I read this - My Galaxy 2.8 v6 starts but then cuts out after 2-3 seconds. I had AA home start out and they said it was either the immobiliser, transponder or the fuel pump!! It's in the garage now and they're struggling as well. Is this the (infamous) "relay 30"? Quote
Denis Posted February 1, 2006 Report Posted February 1, 2006 Could be an immobiliser issue On a Tdi the immobiliser will let the car start but then it dies straight away,not sure on a petrol if it is the same Just to add my observation, when I messed up the programming of a new key my V6 behaved exactly like that- started and cut out after a few seconds, obviously the action of the immobiliser. Quote
Mike 666 Posted February 1, 2006 Report Posted February 1, 2006 Is it fixable - or is it broke. I'm fed up scratching my head Quote
Guest marcusheawood Posted February 1, 2006 Report Posted February 1, 2006 Thats because on a TDi the immobiliser HAS to work on the fuel circuit, no ignition system see! Petrols have electronic immobiliser, they either crank and don't fire or they don't even crank. Quote
Sharanfx Posted February 1, 2006 Report Posted February 1, 2006 All VW based Imobilisers (Petrol or Diesel) will alow the engine to start and then cut it after 3 seconds. Only the Auto gear inhibitor will stop the starter from turning.If you have access to a 5052 or Vag com this will confirm that the key is not authorised or the ECU has been disabled. Try a spare key if you have one first. To Unbolt the master cylinder did you have to get under the steering wheel or pedal area to remove anything. The imobiliser is fitted up under there with wires going off to the reader coil and ECU. Have a check around that area. Quote
stairforce Posted February 3, 2006 Report Posted February 3, 2006 With petrol costing 87p/l and lpg costing 35p/l you need a serious reson for not using it. But if that's the case, what is the capacity of the tank you don't want. Mine is 55l, which is a bit small for a thirsty 2.3l auto Gal... Quote
eupho Posted February 17, 2006 Author Report Posted February 17, 2006 THANKS for all ideas this far......there does seem to be some dispute as to whether V6 has an immobiliser. I cannot think that a top of range V6 does not, but maybe I am mistaken. Having now looked again, in response to Sharanfx idea, I find a wire dangling around the pedals. It may be that I have removed it...it is some time since I tried to solve the problem of non starting and the dismantling of the fascia was some weeks ago. It is a flat black connector with a red/black wire and a yellow/brown one. As the standard Haynes does not cover the V6, the wiring diagrams are of little help...can anyone confirm what this is off please....just in case it is crucial to engine running ! Time is really of the essence so all help will be very gratefully received. Thanks again to all respondents. Quote
Guest vr6galaxy Posted February 17, 2006 Report Posted February 17, 2006 It is a flat black connector with a red/black wire and a yellow/brown one. Footwell lighting, there will be another cable on the passenger side under the glove box, to be sure pop one of the lights out by the rear hatch and see if its the same connector? if it is plug it in and it should work? wont stop the car from starting though if it's not connected :) nice easy upgrade though :) all Galaxy's have an immobiliser as standard it's called PATS (Passive Anti Theft System) the LED on the door signals it's operation :rolleyes: Quote
Masked Marauder Posted February 17, 2006 Report Posted February 17, 2006 Aye, what is the LED on the door doing when you start the car? Quote
eupho Posted March 21, 2007 Author Report Posted March 21, 2007 It is some time since I posted this topic, and still the car sits on the drive...but I must now get it sorted. Nothing has changed, is starts for just a couple of seconds. The only thing I have not mentioned is that when I turn the key the needles on the dash shoot round, I dont know if it does this every time. Do mobile mechanics have the facility to locate the fault, particularly if it were to be on the ECM side of things? I have checked all the connections around the air intake, will a leak stop it starting as the connection with the rubber seal in it is a bit broken, although I have taped it around. I seem to remember that when I did the master cylinder replacement, I did start the car, in order to boost the brake pedal with the servo and,at the time, none of the air intake assembly was even connected, so I would be surprised if a leak was that crucial. Any advice please. I am in the Derby and Burton on Trent area. Does anyone have any suggestion as to a competent mobile mechanic for the V6. Thanks for any help, it is much appreciated. Tom Quote
NikpV Posted March 21, 2007 Report Posted March 21, 2007 so out of interest what does the door led do whilst starting Quote
eupho Posted March 27, 2007 Author Report Posted March 27, 2007 With respect to the door led. When the car is locked the led does its regular flashing. Once unlocked,led goes out and when the ignition is turned on it stays on for 3 or 4 secs then goes out.....but the engine stops too! Does this rule out the possibility of an immobiliser problem. Thanks again for help. Tom Quote
Guest wolfie Posted March 27, 2007 Report Posted March 27, 2007 if the led stays on for three/four seconds upon start up it it means that all is well with the immobiliser, and the fault lies else where? possible fuel pump relay? crank sensor? IIRC? if the PCM doesnt get a signal telling it that the engine is turning over it kills the fuel pump? it maybe time to get dragged to a garage and get the codes read! and go from there Quote
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