So... i've still got boost problems!
The VVT has been changed and has sorted the timing problem, a resistor is in place where the secondary air intake was, and 3-4 different N75's have been tried!
The fault is most definatly electrical as whenever the Maximum charge pressure surpasses fault is cleared it boosts fine through 1st - 2nd gear and once it senses a bit too much boost it all goes t!ts up!
Basically now, it boosts weak to 15psi and as soon as it touches it, it rapidly drops to about 5-8psi. and stayes there the whole rev range... if you take your foot off and plant it back down it does the same thing again and again... untill you clear the fault... then it's 20odd psi for a bit, and then the same symptoms...
it sounds like a boost leak when it goes into this limp mode... but it's definatly not
We're looking to change the MAP sensor when i can find one attached to a standard side mount
But, does anyone else have any ideas what it could be?
Cheers
