P0121 and a bang

[deathrider311271]

right guys,

on the way home from work tonight i was accelerating fairly hard when i heard a bang, no power for about 3 seconds then limited power, car wont tick over and when it does its extremely lumpy, runs okish over 3k rpm.

Oh and have a guess what lights are on................................................ ..


bloody ETS and engine

So im thinking i have managed to blow my ETM completly

Checked all turbo hoses and appear to be fine.

thoughts please.

Simon

[merc85]

right guys,

on the way home from work tonight i was accelerating fairly hard when i heard a bang, no power for about 3 seconds then limited power, car wont tick over and when it does its extremely lumpy, runs okish over 3k rpm.

Oh and have a guess what lights are on................................................ ..


bloody ETS and engine

So im thinking i have managed to blow my ETM completly

Checked all turbo hoses and appear to be fine.

thoughts please.

Simon

Slipped Timing belt??

[merc85]

The last time that sort of thing happen to me, it was a Burst Turbo hose from intercooler.

[deathrider311271]

The last time that sort of thing happen to me, it was a Burst Turbo hose from intercooler.

would that throw this code up tho??

[p fandango]

P0121 Throttle Position Sensor/Switch A Circuit Range/Performance Problem

[merc85]

P0121 Throttle Position Sensor/Switch A Circuit Range/Performance Problem

thats etm fault on a me7 tho aint it?

[merc85]

would that throw this code up tho??

Sorry bud forgot urz is me7... searched the code came up etm fault. man you aint having any luck latly.

[p fandango]

thats etm fault on a me7 tho aint it?

i've no idea tbh, thats why i only posted the description. From the wording i'd of said it sounds more like the potentiometer on the pedal, as i say only a guess

[merc85]

i've no idea tbh, thats why i only posted the description. From the wording i'd of said it sounds more like the potentiometer on the pedal, as i say only a guess

I suppose the only way to go is reset the code and see if the car runs any better.

[deathrider311271]

I suppose the only way to go is reset the code and see if the car runs any better.

cleared codes still runs like a bag of spanners, but also now got the code for MAF sensor not impressed with that one as its only 6 months old. Disconnected MAF and it ticks over okish, went for a run and got code p0121 again and P0102 flow too low. With MAF disconected the boost is also eratic but that may well be down to the fact the MAF is disconnected

[merc85]

cleared codes still runs like a bag of spanners, but also now got the code for MAF sensor not impressed with that one as its only 6 months old. Disconnected MAF and it ticks over okish, went for a run and got code p0121 again and P0102 flow too low. With MAF disconected the boost is also eratic but that may well be down to the fact the MAF is disconnected

You checked the intercooler for any leaks? i've got a 2nd hand but good maf you can borrow if you like. if thats the same as a me7 car of course.

[bubba_1986]

cleared codes still runs like a bag of spanners, but also now got the code for MAF sensor not impressed with that one as its only 6 months old. Disconnected MAF and it ticks over okish, went for a run and got code p0121 again and P0102 flow too low. With MAF disconected the boost is also eratic but that may well be down to the fact the MAF is disconnected

Me and wobbly have a maf for sale, car was running fine with it. Same one that the etm came off of

[shepbomb]

P0121 throttle unit internal fault

[yorkiet52]

Surly if you heard a bang it has to be a mechanical failure ?

[deathrider311271]

Surly if you heard a bang it has to be a mechanical failure ?

Nope not mechanical failure, MAF is knackered and also ETM is knackered, the bang i heard was a blowback thro the ETM which has bent the butterfly slightly.

Good job i have a spare ETM and a MAF on the way lol

Simon

[merc85]

Nope not mechanical failure, MAF is knackered and also ETM is knackered, the bang i heard was a blowback thro the ETM which has bent the butterfly slightly.

Good job i have a spare ETM and a MAF on the way lol

Simon

Glad you got it sorted buddy, hopefully some luck going ur way.

[jdavis]

check the vacuum hoses at the turbo. i had a very similar problem to this on mine and the hose that is on the intake pipe, just in front of the compressor housing had come off, took me ages to find it, it was while i was swapping MAF's over that i spotted it, had probably come loose due to worn top engine mount as it was before i polybushed it. Sounds like an identical scenario, i went to boot in past a car, floored it, loud noise, lost throttle, coasted to layby, turned engine off, turned it back on all was well apart from the dreaded lights and a bit of crap running,
I stuck it back on and ETM light went straight out and car was running spot on again. worth a look mate

[deathrider311271]

check the vacuum hoses at the turbo. i had a very similar problem to this on mine and the hose that is on the intake pipe, just in front of the compressor housing had come off, took me ages to find it, it was while i was swapping MAF's over that i spotted it, had probably come loose due to worn top engine mount as it was before i polybushed it. Sounds like an identical scenario, i went to boot in past a car, floored it, loud noise, lost throttle, coasted to layby, turned engine off, turned it back on all was well apart from the dreaded lights and a bit of crap running,
I stuck it back on and ETM light went straight out and car was running spot on again. worth a look mate

thanks for that, i checked all the pipes and vac pipes and they all seem fine will recheck them when i fit the new maf

simon

[Vikingxl]

Mine was like this when i blew my intercooler into pieces