VY 6 lost performance

[djwatson93]

Hey all

Had this VY cialis for a few years,

Added some bolt ons
E.g
Twin 2" dual cats
Mace bored throttle body
Plenum spacer
CAI

Got a ecu tune from mace as well with increase trans line pressures and to run 98

When I first did this, would just touch the pedal and the revs would fly up, was really sensitive, now it's relaxed out a bit,

But performance and fuel economy has decrease a lot,
Did diagnose a vacuum leak and fixed that up, as there was a bad idle issue,

But now on take of it bogs down and shudders and has lost a lot of its acceleration when taking of foot flat on the ground,

Pretty confused to what it could be,

Thinking o2 sensors as reading fluctuate, maybe TPS sensor.

 

[Fu Manchu]

Checked fuel pressure?

 

[Lex]

Hey all

Had this VY cialis for a few years,

Added some bolt ons
E.g
Twin 2" dual cats
Mace bored throttle body
Plenum spacer
CAI

Got a ecu tune from mace as well with increase trans line pressures and to run 98

When I first did this, would just touch the pedal and the revs would fly up, was really sensitive, now it's relaxed out a bit,

But performance and fuel economy has decrease a lot,
Did diagnose a vacuum leak and fixed that up, as there was a bad idle issue,

But now on take of it bogs down and shudders and has lost a lot of its acceleration when taking of foot flat on the ground,

Pretty confused to what it could be,

Thinking o2 sensors as reading fluctuate, maybe TPS sensor.

Try resetting the pcm. Either by pulling the pcm fuse or taking the - battery terminal of the terminal.

May need the security radio code before doing this? I don't have a vy. But to do this to a vt l woud need the security code (no radio) for a standard radio. Wouldn't be neccesary with a aftermarket h/u.