Vauxhall Astra random limp mode

Car: Vauxhall Astra
Variant: 1.7 cdti
Model Year: 2004
Categories: Running Rough, Starting & Power Loss
i put all of my savings into buying a newish car around 8 weeks ago. I had a timing belt fitted and a service done. I knew there were a coiuple of faults on it by the codes. These were 0500 vehicle speed sensor and 0380 glow plugs. Then about 3 weeks ago i was doing around 30mph when the car just slowed right down and it didnt matter how much i pressed the accelerator pedal it wouldnt go above 1000 revs. I turned it off and turned it back on and it was fine.Read the codes 1122 and 1120 then at random it happened again a few days later. Took it to a mechanic who said couldnt find a fault and wiped the codes so he could see what came back up when it went into linp mode which it did. 1120 and1122 came back again and another code for the immobiliser 1614 ( i think). so he said to replace the pedal. I wasnt sure it was so took it to an auto electrician who read the codes again and rang me and said he thinks its the edu or ecu but couldnt be sure without stripping it doen. I really really need help with this. Its far too close to xmas and i have emptied my bank account on this car now. I cannot afford to throw money away on fixing things that arent broken. I would appreciate any help . Sorry about the long post
Posted: Oct 20, 2012 (12 years ago)
get the wiring at the ecu checked its in front of the arch liner on the drivers side i have seen several that have problems there if its had any front end damage its probably wiring if the wiring is load tested and is ok check the output of your throttle on live data i did buy a code reader from eobd2.com thats the best vauxhall code reader on the market it was about 30 quid bargin :) u could check the pins on the throt pot plug they sometimes open up :)
Posted Oct 21, 2012 (12 years ago)

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