Raggedy Posted May 9, 2009 Report Posted May 9, 2009 Hi All,Please bare with me as this is my first post. I'll try to be as detailed as I can in this post, I think I might have something to baffle you all here.Symtoms for lack of power.Slow steady acceleration with no noticeable turbo kick in. I also have a 1.8 TD Mondeo (V Plate) and can feel a noticeable difference in power when the turbo kicks in with that. Car will achieve 70 mph on on the flat (eventually) but speed will slowly decline on any gradient, to a ponit when I get flashed to pull over by road sweepers :-). So far I have tried the following. Sent Turbo away for investigation - Returned no fault found.Used a donor Galaxy and changed several items individually. Such as MAF, throttle sensor. No difference. Pulled the exhaust (CAT) to check for any blockages. No joy with anything. Second Fault.Loss of Ignition system during engine running. This can occur at any time from warming the engine up on tick over on a cold winters morning, to traveling at 70mph on the motorway ( when I can get that fast with problem one lol). The length of time for ignition loss has been anything from a few seconds, where the rev counter will drop to zero and pick back up again (as the car momentum bump starts the engine). As the rev counter comes back to life the glow plug light will appear for a short time. The longest I have had to wait is about 20 mins before I can restart the car. During that period I can turn the ignition on and off and although other electrics work (engine will turn over), I get no glow plug light and the engine will not fire up. Finally once I turn on the ignition and the glow plug light appears the engine will start up againAny help will be greatly appretiated as the 2 grand government offer is becoming more and more inviting. Just need the rest of the cash to go with it :-). Quote
sepulchrave Posted May 9, 2009 Report Posted May 9, 2009 Fault number 1 is almost certainly a failure somewhere in the vacuum driven boost control system. Fault number 2 may be related to a failing Crank Position Sensor assuming that it's an early PD engine. Quote
Raggedy Posted May 9, 2009 Author Report Posted May 9, 2009 Fault number 1 is almost certainly a failure somewhere in the vacuum driven boost control system. Fault number 2 may be related to a failing Crank Position Sensor assuming that it's an early PD engine. Its a 90bhp engine so I take it its not a PD engine. Thanks for the info though :-) Quote
roy202 Posted May 9, 2009 Report Posted May 9, 2009 Fault number 1 is almost certainly a failure somewhere in the vacuum driven boost control system. Fault number 2 may be related to a failing Crank Position Sensor assuming that it's an early PD engine. Its a 90bhp engine so I take it its not a PD engine. Thanks for the info though :-)could still be a pd engine whats the engine code its found on top of the timing belt cover on a sticker? Quote
sepulchrave Posted May 9, 2009 Report Posted May 9, 2009 Jesus, a six-speed box on a 90 bhp..........Why? Quote
big_kev Posted May 9, 2009 Report Posted May 9, 2009 Jesus, a six-speed box on a 90 bhp..........Why? Why not ? I thought it was only the auto box the 90 couldn't handle Quote
roy202 Posted May 9, 2009 Report Posted May 9, 2009 Do you mean the ANU 023-767 ?yes ANU is the engine code and it is a pd engine 90bhp i think the first pd engine was put in the 1999 tdi (6 speed) Quote
sepulchrave Posted May 9, 2009 Report Posted May 9, 2009 Jesus, a six-speed box on a 90 bhp..........Why? Why not ? I thought it was only the auto box the 90 couldn't handle No, I mean the 90 is so torquey that a four-speed would be fine. So a close ratio six-speed is utterly pointless. Quote
Raggedy Posted May 9, 2009 Author Report Posted May 9, 2009 Reading some of the fixes on this site I'm going to give the relay 30 a try, it has been mentioned that it controls the fuel pump. Thinking about the second fault, fuel starvation would cause the stall at any point during engine running, tickover or motoring. I can't recall any pump noises when I 've tried to start it when I've had to pull over. I'm thinking if the relay was temporarily stuck the engine would crank over but not fire up. Logic says the glow plug warmer must be on a curcuit that identifies fuel entering or it would be heating up fresh air. Does this make sense ? Quote
roy202 Posted May 10, 2009 Report Posted May 10, 2009 Reading some of the fixes on this site I'm going to give the relay 30 a try, it has been mentioned that it controls the fuel pump. Thinking about the second fault, fuel starvation would cause the stall at any point during engine running, tickover or motoring. I can't recall any pump noises when I 've tried to start it when I've had to pull over. I'm thinking if the relay was temporarily stuck the engine would crank over but not fire up. Logic says the glow plug warmer must be on a curcuit that identifies fuel entering or it would be heating up fresh air. Does this make sense ?not really, anyway you can try a relay they just need resoldering if you look closely you will see the crack in the solder, quite a common prob ive done a few of them now! you can usually tell if it the relay im thinking of by banging the dash it will start again when it makes contact but will stop again. Quote
sepulchrave Posted May 10, 2009 Report Posted May 10, 2009 Reading some of the fixes on this site I'm going to give the relay 30 a try, it has been mentioned that it controls the fuel pump. Thinking about the second fault, fuel starvation would cause the stall at any point during engine running, tickover or motoring. I can't recall any pump noises when I 've tried to start it when I've had to pull over. I'm thinking if the relay was temporarily stuck the engine would crank over but not fire up. Logic says the glow plug warmer must be on a curcuit that identifies fuel entering or it would be heating up fresh air. Does this make sense ? No, it's nonsense. The oft cited Relay 30 fault is really only relevant to petrol engines, particularly the I4 2.3 Galaxy. If you have a PD engine the fuel pump is mechanical and driven from the end of the cam, there is a lift pump in the tank but they don't really give any trouble or make any noise. If you have VAG-COM available this may help since I believe this fault to be electrical, it is possible that your loss of power is the ECU going into 'limp home' mode due to a major electrical malfunction like the CPS going intermittant. Otherwise please feel free to 'invent' your own solution to the problem and good luck fixing it. Quote
roy202 Posted May 10, 2009 Report Posted May 10, 2009 Reading some of the fixes on this site I'm going to give the relay 30 a try, it has been mentioned that it controls the fuel pump. Thinking about the second fault, fuel starvation would cause the stall at any point during engine running, tickover or motoring. I can't recall any pump noises when I 've tried to start it when I've had to pull over. I'm thinking if the relay was temporarily stuck the engine would crank over but not fire up. Logic says the glow plug warmer must be on a curcuit that identifies fuel entering or it would be heating up fresh air. Does this make sense ?not really, anyway you can try a relay they just need resoldering if you look closely you will see the crack in the solder, quite a common prob ive done a few of them now! you can usually tell if it the relay im thinking of by banging the dash it will start again when it makes contact but will stop again.yeah sorry i was getting carried away and forgot yours was a diesel, this would only happen to a petrol and not a diesel as sepulchrave rightly says.... Quote
Raggedy Posted May 26, 2009 Author Report Posted May 26, 2009 Problem 2 resolved which was the engine cutting out problem and the most dangerous when driving. Started by breaking the circuit of the Camshaft position sensor which as expected cut the engine but did not mimic the fault I was getting as the Glow Plug light would still come on and the engine turned over. So having trawled through a few problems on this site I found an interesting string of problems with Relay 109. So got to the relay (Many thanks to the posters on here who clearly identified its location), removed the cover and and started up the motor. By breaking the contact of the relay and keeping it open I was able to replicate the cutting out problem, ie enigne would turn over but no glow plug light would appear and engine would not fire up. Allowing the relay to make contact would produce the glow plug light and engine would fire up. Many thanks to all the suggestions. Once issue 1 is resolved I will post my findings. Thanks again to all. Quote
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