Hi Guys,
I am having problems getting my engine to start after fitting a 2.5 litre block and upping the intake pipe size to 70mm.
The car fires once then just cranks over, I do get faults P0102 and P0113 after cranking for a few seconds.
Couls this be due to Maf scaling or should I be looking elsewhere?

 

If you are using the same MAF in its same housing then it isn't a MAF scaling issue

 

Same maf but the pipe has been changed from a 65 to a 70mm.

 

The maf housing is part of the pipe.

 

by any chance did you not change the crank sprocket.

as theres differnt ones.

 

Either the MAF is broken (did you drop it?) or the plug hasn't been pushed all the way in.
There may also be a common earth that hasn't been located properly.

 

Sprocket is the original one from my 2ltr.
Can't remember dropping the sensor but out had been moved around a lot. I'll have a check to see if I have missed any grounds.
Cheers.

 

Should still fire up and run going from 65-70 on cold enrichment IMO but IMO you should refit the original housing if you are planning on driving to your mapper, then swap it over once there.

Good luck finding the issue

 

Found a couple of grounds that I had missed on the inlet manifold behind the air con pump.
Just waiting for the battery to charge up overnight now.