My son's car is causing headaches with its running issues, he's posted on here about the TPS throwing up faults but i thought i should try and give a better picture of the faults and see if anyone has any ideas.
Its a 1997 5 door merit hi-torq, single point injection x14nz.
When we bought it the previous owner, (some garage in Mansfield) stated there were some running issues initially with the car when they got it, and they replaced al the sensors and some other stuff, but could not get the emissions down, so thy swapped the engine for one from another 1.4 astra they had which pparently fixed the issues.
Only got to drive around the lot as we were short of time but it seemed fine and as the underbody of it was good we decided to buy it.
No real issues on the way home apart from a sticking brake and the fact it was gutless according to my son. But when i got to drive it, i found 'gutless' actually meant 'without any power whatsoever'.
I decided it was time for a proper look... turns out a lot of the 'new stuff' was still in boxes in the boot, so we fitted those, no real improvement. We fitted the spare distributor as the one on it was burnt badly and the rotor arm had disintegrated, ...a small improvement... but still no power.
We have since replaced the vacpipes, fitted any new sensor we can, and timed it up properly, it will run at the correct timing settings but bogs down on acceleration to the point of nearly stalling, but if you then lift off the throttle it smoothes out and runs nicely, you just can't accelerate quickly... or at all really. the only way it accelerates at all is if you advance the ignition quite a bit, but then it idles high.
And every morning it throws up a TPS fault code and wont run very well at all until its warmed up.
TPS has been changed three times, everything has been changed at least once, it just keeps doing the same thing.
One for the older generation, It runs exactly like a chevette or viva does when the stromberg carb diaphram is worn out or the piston spring is missing, like the piston shoots up too quickly and delivers too much air and it goes breathless... if anyone remembers that....
But i cant see what would cause that on these single point injection things.... any ideas?
I've probably missed something obvious that's clearly apparent to someone on here, i dont mind if i'm being dumb, i just want it sorted, if only to stop my son harrassing me with his car
Thankyou for your time, any advice is much appreciated.
Its a 1997 5 door merit hi-torq, single point injection x14nz.
When we bought it the previous owner, (some garage in Mansfield) stated there were some running issues initially with the car when they got it, and they replaced al the sensors and some other stuff, but could not get the emissions down, so thy swapped the engine for one from another 1.4 astra they had which pparently fixed the issues.
Only got to drive around the lot as we were short of time but it seemed fine and as the underbody of it was good we decided to buy it.
No real issues on the way home apart from a sticking brake and the fact it was gutless according to my son. But when i got to drive it, i found 'gutless' actually meant 'without any power whatsoever'.
I decided it was time for a proper look... turns out a lot of the 'new stuff' was still in boxes in the boot, so we fitted those, no real improvement. We fitted the spare distributor as the one on it was burnt badly and the rotor arm had disintegrated, ...a small improvement... but still no power.
We have since replaced the vacpipes, fitted any new sensor we can, and timed it up properly, it will run at the correct timing settings but bogs down on acceleration to the point of nearly stalling, but if you then lift off the throttle it smoothes out and runs nicely, you just can't accelerate quickly... or at all really. the only way it accelerates at all is if you advance the ignition quite a bit, but then it idles high.
And every morning it throws up a TPS fault code and wont run very well at all until its warmed up.
TPS has been changed three times, everything has been changed at least once, it just keeps doing the same thing.
One for the older generation, It runs exactly like a chevette or viva does when the stromberg carb diaphram is worn out or the piston spring is missing, like the piston shoots up too quickly and delivers too much air and it goes breathless... if anyone remembers that....
But i cant see what would cause that on these single point injection things.... any ideas?
I've probably missed something obvious that's clearly apparent to someone on here, i dont mind if i'm being dumb, i just want it sorted, if only to stop my son harrassing me with his car
Thankyou for your time, any advice is much appreciated.
