Electrical Fault

[JackoR26]

Afternoon all,

Ive had a problem with my 172 Cup for a couple of months now, it only happens when i go to about 6k rpm. It basically goes into limp mode with the electrical warning light on and i have to reset the engine for it be ok again.

I borrowed a code reader from Scott_182_Cup (cheers mate) just before xmas and the first code i got was P0120 which i reset, i researched the code on here and found it to be either the Throttle Pedal or the Throttle Body. I decided to wait a bit since resetting the code to see if it came back again before replacing any parts, finally after waiting for a while it happened again today but after i reset the engine the Emissions Light has come on but the error code is still the same of P0120.

Has anyone else had this? Should i go ahead and change the throttle pedal or is there something else wrong?

Its a 52 plate 172 cup, spark plugs are 2 years old, coil pack was replaced around the same time with a second hand one, car has an RSTuner remap, decat and SS catback exhaust.

Any help appreciated and thanks in advance

Jacko

 

[adam1942]

on my old 1.2 mk2 I had the same type of issue only I wasnt revving any where near 6k rpm! It turned out to be the throttle Pedal potentiometer ! (basically a new pedal) as far as I know they are £36 and 3 bolts hold them on! (prices where about 2 years ago now!) hope this helps.

 

[peter182]

i had this problem last month bought a new pedal and it was still doin it found out i had water gettin into my electric's.

 

[JackoR26]

i had this problem last month bought a new pedal and it was still doin it found out i had water gettin into my electric's.

Was the emissions light coming on too?

Where abouts was the water getting into the electrics?

Thanks

 

[Hutchie]

wanna try a pedal on it, ill dig mine out.

dont think i have a TB though.

 

[JackoR26]

Gonna order a new one, dont think i could make it over to your garage in this weather Hutchie

Will update back here with the results

 

[JackoR26]

Changed the pedal, made no difference :dapprove:

 

[dave.hat]

i've just got mine back from havin this problem, one of the connectors were dirty and coroaded so he changed that and bingo....

 

[JackoR26]

i've just got mine back from havin this problem, one of the connectors were dirty and coroaded so he changed that and bingo....

What connection was this mate?

 

[dave.hat]

Not sure mate but he showed me the old one and it was fubard!

sorry not that helpfull

 

[peter182]

its the connects in the loom wot goes into your (bulkhead) mine is goin bk into renault 2morrow its happened again

 

[JackoR26]

Replaced the coilpack and everything is sorted

 

[peter182]

 

[Hutchie]

yey.

i would play hell with who-ever supplied you with the faulty coilpack tbh