Hey everyone,
Having some issues with the stagea i cant quite figure out.
Dont like starting a new topic and iv done some extensive searching on these forums so heres the rundown
Car has HDI kit, custom bov pipe ( 3inch from kit ) kompact bov, changed vac hoses except one with restrictor going to WG actuator, boost solenoid blocked off so should be running on wg pressure, scottys dump pipe and a walbro 255 not yet on 12v constant.
Somewhere along the line it threw a lean code on bank 1 P0171, i had the fuel pump done along with filter etc thinking this might clear it but to no avail, however the car still idle fine just bleeds off boost around 9psi according to the tyrbosmart guage not the usual 12ish it used to even after ditching the solenoid.
So i dropped it off to a reputable auto lekky and had him throw the scanner on it and run some tests, he found a couple of small leaks and while i was there i had the injectors flow tested and serviced for peace of mind.
Got the car back, the code had gone but still bleeding off at 8/9 psi and still rather whiney ( as always ), about a week later the CEL came back and gave me the lean code again along with Electronic throttle control ( guessing TB ) and throttle or pedal pos sensor, assuming they both go hand in hand.
Unfortunately i needed the car for the week and couldnt get it back to them to investigate further
Strangely enough two days later i start the car and now the codes are gone? It feels like its got a little more grunt now too but still bleeding off early!?
Sooo im scratching my head, could the AFM be going? Or the wastegate opening early? Heat is not proving to be a factor with the gate AFAIK, the idle is always 650 once warm, idle inHG is around 18/20 ish as mentioned drives fine untill that 8/9psi mark then just spins no more and is a sluggy sounding whistle really.
Anyone willing to throw in some input is greatly appreciated,
Ps will change the lower rubber pipe before intercooler not supplied with hdi kit to this dolphin hard pipe when it arrives.
Cheers!