under boost issues...here we go again!

[blade4real2004]

since fitting THS front mount cooler my boost spike had gone from 20-22 psi to 15-16 psi been over the car for boost leaks with a boost leak tester was one on the vac line right on the fpr and one on the breather pipe under inlet (was a pin hole) i fixed these but car still not hitting near 20psi also the car feel flat its lost that punchy torque it had before fitting the front mount

anyone got any ideas what i can look at to try to get it back to how it was?

my mapping i got on there is stage 2 rtech (generic) the car feels like as if someone has taken the mapping off it is best way to discribe how it feels to drive

[RTechUK]

since fitting THS front mount cooler my boost spike had gone from 20-22 psi to 15-16 psi been over the car for boost leaks with a boost leak tester was one on the vac line right on the fpr and one on the breather pipe under inlet (was a pin hole) i fixed these but car still not hitting near 20psi also the car feel flat its lost that punchy torque it had before fitting the front mount

anyone got any ideas what i can look at to try to get it back to how it was?

my mapping i got on there is stage 2 rtech (generic) the car feels like as if someone has taken the mapping off it is best way to discribe how it feels to drive

It could be a number of things, mapping as the drawing of more air to fill the FMIC can make up the load so the ecu thinks its filling the cylinders with enough air, could also be a leak, a valve, faulty maf, vac lines ect..  What you need to do is log the requested load vs actual load against the n75% reading to see whats going on.

[blade4real2004]

cheers how you do that? i got vagcom so can do loging but not done anything like that yet. i also checked it with vagcom and no fault codes on there. do you think with your generic stage2 software (was put on in aug '99) would cause the issue as the generic is set for standard intercooler etc, the issue started instantly after fitting the new cooler if that any help

im thinking of changing the injectors etc like chris has and having the mapping tweaked but i need to find out what is going on first as its like a 3hr trip from barry (wales) to get up to you.

how much is the fuel pump you supplied to chris and the throttle body mod and what will the cost be to tweak the mapping?

forgot to saying engine is an AGU

[RTechUK]

Its all down to your car actual setup and how the map responds.

You need to log blocks 25 to see whats going on.#

[blade4real2004]

ok ill log 25 is there a way to make it i.e a way the car needs to be driven?

[Chris.]

full throttle run in 3rd gear is usually best. low RPM - redline!

[blade4real2004]

ok cheers chris i got to go up my mums today so ill try and log it on my way up there

[blade4real2004]

Going to be going out now in a bit shall I log measuring block 002 as well or just 25

[Wazzzer]

Might be worth logging the MAF too

I had a similar problem and it turned out to be a combination of the MAF and actuator

[blade4real2004]

Couldn't do a log on the way out as was a bit to much traffic so will do it on my way home now just to double check I'm going into measuring blocks not single block then change one group to 025 and the other to 002 then click the log tab at bottom right then start when I'm read to start the logging?