New to tuning and no time with my job to really get to know the language, but hoping someone has encountered similar symptoms and found a solution:
Tune is custom and done remotely from a reputable tuner, but he's pretty busy and I think his job is done until I get the other pulley/belt. Setup is '03 with full exhaust, VMP with VMP3000 MAF on the stock unit.
Cold start or hot start, the first few minutes of driving registers a rich A/F, like 10.2 - 11.2:1 at idle. Under ANY load where compression starts, the car stumbles, maybe like there's way too much fuel. And if you watch the A/F, as soon as it registers a normal idle A/F like 13.X:1, loaded acceleration is totally normal and without issues.
Also, a quick blip of throttle makes the car stumble at any operating temperature, but I hear that's attributable to the GT500 TB (mech link).
The check engine light has thrown the following codes several times:
P1115: intake air temperature 2 (iat2) ckt high output (super/turbo charged)
P0148: fuel delivery error
P2195: 02 sensor signal biased/stuck lean (b1, s1)
Maybe just buying new 02 sensors is worth a shot for starters?
Tune is custom and done remotely from a reputable tuner, but he's pretty busy and I think his job is done until I get the other pulley/belt. Setup is '03 with full exhaust, VMP with VMP3000 MAF on the stock unit.
Cold start or hot start, the first few minutes of driving registers a rich A/F, like 10.2 - 11.2:1 at idle. Under ANY load where compression starts, the car stumbles, maybe like there's way too much fuel. And if you watch the A/F, as soon as it registers a normal idle A/F like 13.X:1, loaded acceleration is totally normal and without issues.
Also, a quick blip of throttle makes the car stumble at any operating temperature, but I hear that's attributable to the GT500 TB (mech link).
The check engine light has thrown the following codes several times:
P1115: intake air temperature 2 (iat2) ckt high output (super/turbo charged)
P0148: fuel delivery error
P2195: 02 sensor signal biased/stuck lean (b1, s1)
Maybe just buying new 02 sensors is worth a shot for starters?