Need help asap with my corsa b sxi running problems

[redsxi]

hi iam new to this club just bourght a sxi v reg and ran ok when i got it apart from when u released throttle revs would drop realy low and back to idle again now it starts fine idles fine but as soon as u try revving it it will pop (backfire through filter) and revs drop insted of riseing i cant drive it and its getting on my nerves now i need to fix it asap as need it for college.i got worse in about 4days it used to work if u reved it slowly soon as u tryd reving it hard or accellerating hard it would die and pop now it wont run at all but still idles fine i was thinking throttle position sensor can anyone help (russfawcus@hotmail.com)

[jamie nivauxhall]

m8 mines was the sme as yours.. al the things i done on mines da try n fix it was change the spark plugs, change the air flow meter, clean or change the egr valve, i also found that mi water bottle for the rad was dirty inside nd cleanin out the bottle n rad made it run alot beter hope this has helped

[Sam58]

Take off the egr valve and give it a thorough clean, as is shown in the how tos on here. If the car is idling fine then the tps should be ok. If cleaning the egr does not help, unclip the camshaft sensor, and see it the car still starts, if it does undo the crankshaft sensor and see what happens. It could be that one or the other has gone on the blink.
Try the paperclip test, it might work, and will give you powertrain faults, use as described in this forum how tos as well.
It must be a timing/mixture problem, and as such you may just get the right codes to help deal with your problem, it would be best though if you could get someone with a fault code reader to do this for you.

[redsxi]

thanks a lot for your help.it starts fine idles spot on intill you rev it and it trys to die splutters and backfires under bonnet i just bourght it ran fine when i got it only had it a few days past its m.o.t no problem then when i got in car to drive it back home it wouldnt run right. if you hold accellerator dwn slowly graduly it will rev but only at 1100 revs then it will pick up now and agen n drop down again.i was told its common problem the air flows and egr plus cam sensor i need it fixed to get to college as iam a trainee mechanic and i have a calibra but too much to run i only get 380 a month hope fully i will get it sorted thanks again i will get back to u

[redsxi]

getting it sorted luckily i work at a garage so orderd a egr valve idle control valve maf sensor coil pack etc pluged them in untill it fixed it and sent back what wasnt needed the maf fixed the problem where it wouldnt rev and the idle control valve fixed the problem when u let of accleerator and it boged dwn so anyone with these problems maf sensor and idle valve.... thanks for all your help