[Dan_c20xe]

I have just got my c20xe corsa on the road and it has a slight running problem. It won't rev all the way round in any gears but 1st and 2nd is still rapid but as soon as you go into 3rd and put your foot down it holds back like its hitting a flat spot, it also does the same in 4th & 5th. I have already changed dizzy cap, rotor arm, plugs, leads & lambda sensor, anybody have any ideas to what could be the problem?
Thanks Dan

 

[Vegas]

What engjne was in there before?

 

[craig55]

Sounds like a tps issue

 

[Dan_c20xe]

Was a 1.2 in it I brought it off my mate who done the conversion.

 

[ibysmalls]

How does it rev in neutral?
Does the EM light work and if it does, does the light come on when it hits this "flat spot" ? If it does then Get the codes read if the socket works.

I had a similar issue on my 1.0, replaced maf and worked fine after that but two different engines. If you know anyone with same engine then try swapping maf sensors over and see what happens.

 

[Vegas]

Single point or Multi point?

 

[Dan_c20xe]

The em light is on all the time and the plug doesn't work as already put a code reader on it, it's same as if I rev'd it in 1st or 2nd. I was gonna replace the maf sensor next but was hoping it was gonna be something abit cheaper lol.
Its multi point injection

 

[Vegas]

Not now, I
Mean what injection was engine before?

 

[Dan_c20xe]

Oh it was single point

 

[ibysmalls]

Changed fuel pump for a MPI one as spi fuel pump wont be enough for the engine?

 

[Vegas]

Exactly as above, you need MPI pump

 

[Dan_c20xe]

Ok thanks for you help