Annoying faults - please help

[big_mac 0]

Where do I start????

 

My 91 g60 has developed a few interesting qualities over the past few months and I was wondering what if anything was causing it.

 

I got a chip off struan (Scott corrado g60) and when I went to fit it discovered that there had already been a superchip fitted, I swapped them over anyways and noticed that the car seemed to pop bang and spit a lot more out of the exhaust which I felt wasnt too good so I swapped the chips back.

 

When I did this the car seemed instantly to have lost power, and not long after it broke down. The first time it melted the coil - distributor lead, then a few days later the cap and rotor am packed in so I got a new ones fitted, but the car seemed to bog down in low revs and although it would run fine it would struggle in low revs then suddenly pick up and go, this has got progressively worse and last night coming home I was accelerating hard and about 6k revs the engine just cut out and wouldnt start again. I got out popped the bonnet and fiddled about with the dizzy cap and checked all the leads and it started again but was really struggling to pick up from low revs.

 

The idle speed seems to be intermittent aswell, in the recent cold weather it ticks over at about 1500 rpm but if you blip the throttle it will settle to about 900-1000rpm but will rise to about 1500 then fall to 500 and it does this three times before settling at 1k rpm (always does this three times before settling down)

 

Also the revs rise when I press the clutch to change gear, it is very annoying as it kinda drives itself and sometimes turning at low speeds it feels like you are fighting the engine to get the car to slow down.

 

I know it should probably go on the vw computer but I really dont have the cash at the moment, vw told me they wanted £53 just to plug the car in before any diagnostic work is done.

 

Do any of you have any ideas what the problem could be? The man from the AA told me the distributors on them are quite prone to going could it be this??

 

Im desperate to get my baby back to full strength so any help is greatly appreciated.

 

Cheers

Andy.

[big_mac 0]

ttt

[h100vw 0]

Andy the hall sender in th edissy is Very prone to quitting on G60s. The dissy is the same as an 8V digifant MK2. So don't pay extra for a 'G60' dissy!

 

Gavin

[Dubcharged 0]

Could you have maybe damaged some circuitry in the ecu whislt swapping chips? Did you ground yourself before touching the chips/ecu??

 

sounds strange that this has just started after the chip swaps. Check that the ecu harness is connected propery. Sometimes the connector pins on the harness bend back and so connection to the ecu pins doesnt happen properly. Take the harness off and with a small pointy object "GENTLY" pry the catch pins forward to ensure a good connection to the ecu pins.

[big_mac 0]

can i just buy a new hall sender? or is it new distributor time?

 

would the VAG computer diagnose things like that? or is it really only sensors?

[h100vw 0]

Hall senders often play up for a while before quitting completely. The time can vary days weeks or hours.

 

New dissy is best.

 

Or a secondhand one from the scrappy. Off a car that is in due to a wack. My theory being that it was running prior to the accident. Summat with no damage may be in there cos it don't run, hall sender gone?

 

Gavin

[big_mac 0]

im not too sure going to try and get it on a VAg machine to get her checked out.

 

ta for the help

[big_mac 0]

wey hey my G60 is back to the wee beastie she is, big shout out to Steph at Caruth Autos for finding the throttle position switch was misaligned and was causing all my problems.

 

although when i picked her up she had no power, phoned the garage and was told to phone back another time so popped the bonnet to have a look and found the boost pipe from the intercooler to throttle body was lying unconnected, cant believe they would leave the car like that let alone send it out.