Evening all. Does anyone have any pointers as to why the 30amp fuse to the Ecu keeps blowing ?
It's happened twice in the last 3 or 4 weeks, big problem as the car just dies...
No damp carpets or foot wells, no steamy windows etc.
Thanks.
Fuse to Ecu keeps blowing
Re: Fuse to Ecu keeps blowing
The one in the scuttle?
Daytona RS6 Avant
Rule #36 - At least one gear shall be dropped for every tunnel travelled
** NOW AVAILABLE ** C5 RS6 Cambelt Tool kit rental (also fits other models 3.7/4.2 V8 engines)
Rule #36 - At least one gear shall be dropped for every tunnel travelled
** NOW AVAILABLE ** C5 RS6 Cambelt Tool kit rental (also fits other models 3.7/4.2 V8 engines)
Re: Fuse to Ecu keeps blowing
Oh sorry no, the one on the main fuse board. I didn't know about the other one, good to know.
Re: Fuse to Ecu keeps blowing
Have you checked the scuttle panel for water? Mine was almost full of water (blocked drain hole) and some of the main electrics where submerged. Luckily no fuses went.
Daytona RS6 Avant
Rule #36 - At least one gear shall be dropped for every tunnel travelled
** NOW AVAILABLE ** C5 RS6 Cambelt Tool kit rental (also fits other models 3.7/4.2 V8 engines)
Rule #36 - At least one gear shall be dropped for every tunnel travelled
** NOW AVAILABLE ** C5 RS6 Cambelt Tool kit rental (also fits other models 3.7/4.2 V8 engines)
Re: Fuse to Ecu keeps blowing
Which number fuse?
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: Fuse to Ecu keeps blowing
Fuse number 29, I haven't hap a chance to check the scuttle yet
Re: Fuse to Ecu keeps blowing
Lots of stuff coming off that fuse. It could be a short somewhere, or a fault in one of the following:
Ignition coils
Engine mounts
Camshaft timing valves
Not easy to determine which. You got any logged fault codes? Might help narrow it down.
My gut says a dodgy ignition coil.
Ignition coils
Engine mounts
Camshaft timing valves
Not easy to determine which. You got any logged fault codes? Might help narrow it down.
My gut says a dodgy ignition coil.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: Fuse to Ecu keeps blowing
Thanks for the help so far 
I haven't had chance to check for codes yet today, but I do get the usual engine mount one.
I'll do a scan later today or tomorrow, although I don't have VCDS so how would I check the coil packs if no misfire shows up which it didn't the last time number 29 showed me the middle finger?
Cheese.
I haven't had chance to check for codes yet today, but I do get the usual engine mount one.
I'll do a scan later today or tomorrow, although I don't have VCDS so how would I check the coil packs if no misfire shows up which it didn't the last time number 29 showed me the middle finger?
Cheese.
Re: Fuse to Ecu keeps blowing
Problem is that fuse 29 takes the ECU out before it can store a fault, possibly. If you've got a faulty mount then I'd start by sorting that since it's on fuse 29 also. Maybe just unplug it for a while to see if that stops the fuse blowing.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: Fuse to Ecu keeps blowing
The matter has been taken out of my hands now as the car left me stranded this morning, grrr, has anyone ever tried pushing one of these things!.
It blew the fuse every time the engine was started, four times, I had to pinch them from non essential items.
So just waiting for the car to be recovered by a local garage who I think might have difficulty in finding the cause.....
We shall see..
It blew the fuse every time the engine was started, four times, I had to pinch them from non essential items.
So just waiting for the car to be recovered by a local garage who I think might have difficulty in finding the cause.....
We shall see..
Re: Fuse to Ecu keeps blowing
It's good that it's now doing it consistently. Will make trouble shooting much easier.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: Fuse to Ecu keeps blowing
Agreed, I was kind of glad to be honest as it's the sort of problem you never know for sure if you've sorted or not.
Thanks for the help thus far although there may be a few more questions to come if the garage draws a blank.
Thanks for the help thus far although there may be a few more questions to come if the garage draws a blank.
Re: Fuse to Ecu keeps blowing
Got the car back today, the problem turned out to be the wiring loom, not sure which part, had been tampered with and attached with cable ties allowing movement causing the wiring to rub through the covering and shorting to the bodywork.
Only cost a very reasonable £170 including recovery, so not too unhappy, could have been much worse.
Mind you spending the last couple of days driving around in the old Quattro ur was nice.
Thanks for the help and suggestions gents.
Only cost a very reasonable £170 including recovery, so not too unhappy, could have been much worse.
Mind you spending the last couple of days driving around in the old Quattro ur was nice.
Thanks for the help and suggestions gents.
Re: Fuse to Ecu keeps blowing
Nice you got it sorted
If you can't go to the track, bring the track to you.
Mugello Blue C5 RS6 Avant
Viper Tuning ECU/TCU
MTM Bimoto wheels 9,5 x 19 ET 30 LK 5x112 with 275/30/19 tyres
MTM exhaust system cat back 4-pipe with throttle valves in 2 pipes, control
Yellow Koni's
Porsche 959, gone but not forgotten.
Fight ALS disease https://www.youtube.com/watch?v=wGFDWTC8B8g
Mugello Blue C5 RS6 Avant
Viper Tuning ECU/TCU
MTM Bimoto wheels 9,5 x 19 ET 30 LK 5x112 with 275/30/19 tyres
MTM exhaust system cat back 4-pipe with throttle valves in 2 pipes, control
Yellow Koni's
Porsche 959, gone but not forgotten.
Fight ALS disease https://www.youtube.com/watch?v=wGFDWTC8B8g
Re: Fuse to Ecu keeps blowing
Cool. Glad it was relatively painless.
How about a gratuitous UrCuntro pic? Any seconders?
How about a gratuitous UrCuntro pic? Any seconders?
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
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