VR running very very rough!!

[DragonAttack 0]

In short, low end revs the car feels like it's going to shake itself to bits, not so much of a problem higher up.

 

Heavy fuel smell on start up too and burning smell after being run for about half an hour or more.

 

Mechanic said it's coming up as a "speed sender" fault.

 

Any information/advice would be greatly appreciated.

[double-6s 0]

Is that the crank speed sensor or something?

[DragonAttack 0]

It may be. I dunno, the mechanic said this morning to get an electrics guy to give it the once over.

[Chris VR6nos 0]

Depending whick model it is, the cam position sensor has given plenty people trouble and rough running and feeling fairly down on power through the rev range, i think that are £30 and make all the difference once replaced by all accounts.

I have a dizzy model so don't have one but if yours is a coilpack model that this may be it.

If the crank position sensor stops working the engine won't run at all.

 

 

Chris

[Kevin Bacon 5]

Worth also noting that if the speed sensor was detected with the engine switched off, you will get that error regardless of the sensor's condition. It's an oversight by Bosch on the OBD1 ECU. OBD2 ECUs ignore stationary cranks though.

[DragonAttack 0]

Worth also noting that if the speed sensor was detected with the engine switched off, you will get that error regardless of the sensor's condition. It's an oversight by Bosch on the OBD1 ECU. OBD2 ECUs ignore stationary cranks though.

 

Which one would be in an N plate 95 VR mate?

[Chris VR6nos 0]

That will be the coil pack version

 

 

 

Chris

[Kevin Bacon 5]

And OBD1

[DragonAttack 0]

And OBD1

 

So OBD1 and coil pack considered, and assuming the speed sender sensor (?) was read when the engine was off, what in the name is going on wi my motor?

 

It feels really bad . . . :(

[Kevin Bacon 5]

Hard to say. If it was running that rough sounds like it's misfiring, leads, plugs?

[DragonAttack 0]

Leads and plugs all changed pretty recently (within the last year).

 

One other thing thats started recently is the car starting and immediately cutting out, the revs just drop like a stone. Dunno if that's related.

 

It's missing like no-ones business and the exhaust is absolutely honking of fuel most markedly after start up. It's idling fairly roughly/noisily.

 

Also the exhaust (brand new VAG) seems to be getting very hot, it "tings" like hell after any kind of running and the centre consol gets pretty warm too !!