dekhelia
30-08-2019, 01:55 PM
This seems to happen a lot with cars ... or possibly to me.
Trying to sort out a Passat with the BKP motor. Broke down on entrance to motorway just after filling up with diesel. AA people scanned it and said "Turbo's gone." Ok, that's simple enough ... I thought.
Got it back here and got it read with VCDS. That brought up a whole load of other things, none of them the turbo. So the turbo fault could just have been related to the engine stopping the way it did.
The other faults related to - you've guessed it - the injectors. First of all Inj2, then with more attempts to start, Inj1 and Inj3 were also throwing faults. With what I have read, and with guidance from you guys, I reasoned that it was the common problem of one injector going bad and somehow dragging the others with it. So I put in a set of known good but secondhand injectors, no new bolts and seals yet as I wanted to only be doing these items once. Also put on a new genuine loom. Engine ran sweetly, so I patted myself on the back and ordered some bolts and seals.
Next day - no start. Or, it would start sometimes and then die, other times not start at all. Time to look somewhere else, as VCDS was reporting all good with the injectors. No other faults apart from irrelevant ones.
I remembered Crasher saying in one of his posts about how ten percent of cars he services have oil contamination in the fuel, due to the tandem pump failing to keep oil and diesel apart. So I opened up the fuel filter housing, to discover that it was more like an oil filter housing. Black. Oh dear. I thought I'd better check the lift pump under the rear seat: dead.
So this is what I think has happened: the lift pump fails, meaning the tandem pump is doing all the work. The car has done 150k, meaning that the tandem pump - not the most reliable of items - has been overworking and has failed also. Oil contamination of the fuel has led to injector failure; the injectors themselves were replaced as part of the recall a few years back.
So a new lift pump and tandem pump have sorted things out, finally ... I hope. As the fuel tank was filled just prior to the original breakdown, I'm hoping that it isn't too contaminated with oil from the failed tandem. I'll just have to run it and see.
After I've got to the bottom of the Depress clutch message when I am in fact pressing the clutch. Always something, eh?
Trying to sort out a Passat with the BKP motor. Broke down on entrance to motorway just after filling up with diesel. AA people scanned it and said "Turbo's gone." Ok, that's simple enough ... I thought.
Got it back here and got it read with VCDS. That brought up a whole load of other things, none of them the turbo. So the turbo fault could just have been related to the engine stopping the way it did.
The other faults related to - you've guessed it - the injectors. First of all Inj2, then with more attempts to start, Inj1 and Inj3 were also throwing faults. With what I have read, and with guidance from you guys, I reasoned that it was the common problem of one injector going bad and somehow dragging the others with it. So I put in a set of known good but secondhand injectors, no new bolts and seals yet as I wanted to only be doing these items once. Also put on a new genuine loom. Engine ran sweetly, so I patted myself on the back and ordered some bolts and seals.
Next day - no start. Or, it would start sometimes and then die, other times not start at all. Time to look somewhere else, as VCDS was reporting all good with the injectors. No other faults apart from irrelevant ones.
I remembered Crasher saying in one of his posts about how ten percent of cars he services have oil contamination in the fuel, due to the tandem pump failing to keep oil and diesel apart. So I opened up the fuel filter housing, to discover that it was more like an oil filter housing. Black. Oh dear. I thought I'd better check the lift pump under the rear seat: dead.
So this is what I think has happened: the lift pump fails, meaning the tandem pump is doing all the work. The car has done 150k, meaning that the tandem pump - not the most reliable of items - has been overworking and has failed also. Oil contamination of the fuel has led to injector failure; the injectors themselves were replaced as part of the recall a few years back.
So a new lift pump and tandem pump have sorted things out, finally ... I hope. As the fuel tank was filled just prior to the original breakdown, I'm hoping that it isn't too contaminated with oil from the failed tandem. I'll just have to run it and see.
After I've got to the bottom of the Depress clutch message when I am in fact pressing the clutch. Always something, eh?