*WARNING - ANGRY PRAWN*
OK, so now that I've got that bit over, I need help folks
You may remember my thread a few weeks ago:
New MAF not 100%? Likely? what would you do?
So, i got my money back, and yesterday, I went to euro car parts, and got myself a MAF from them.
Threw it on last night, and FECK. Complete opposite result.
I let the car warm up, then took it for a drive.
Foot down in 1st gear, and it instantly felt flat, yet the boost appeared to rise to 20psi or so in first, despite there being very little 'pull'
into second, and foot down, and boost instantly rose to 24-25psi, with absolutely no power at all, it just felt totally flat, and then there was a HUGE backfire, which appeared to come from the inlet!
I did a bit more testing, and found that it backfires hugely when it comes onto boost, it's overboosting to 25psi or so, then when it backfires, I'm fairly sure it's comming back through the inlet, because as it does it, my boost guage jumps off the scale at 30psi momentarily! Scary ****.
Easing the throttle in to stop the spike it feels totally flat on boost, and the whole car hesitates and feels like it's surging back and forth, still boosting 23-24psi, and still backfiring randomly whilst on boost.
what the feck is going on? Do the AGU engines have any kind of Fuel cut that I might be hitting?
I stuck my old maf back in, and it's back to usual, running 16psi max, but feeling WAY quicker than it did on the new ECP maf that gave me the 25psi spikes.
I thought at first it was because I've over tightened the wastegate arm in the past, but on actuator pressure it runs 6psi just as it should
I don't get it guys First two mads gave me no extra boost at all, now this one has gone the otherway, into epic over boost, yet it feels flat as anything, so I'm sure it's pulling out all the timing.
Will try and log it tonight and see where it's going wrong.
Not happy at all