quattroowner

iTrader: (5)

Swapped my Celica for this last week so prob's best get some photo's and spec up

145000 odd miles so no spring chicken
Magnex deacatted exhaust
STI V5 TMIC ( was FMIC when i got it)
Tarox 6 pot Front brakes with braided hoses on the front
k&n Cone filter

Its got this boost issue that i havent been able to get my head round

Showing code 45 ( 45 Pressure sensor / Pressure exchange solenoid valve )
31 (Throttle position sensor) This was after i changed it??

Heres a wee video of the problem ( Had a FMIC with Baileys DV at the time)

https://www.youtube.com/watch?v=vTVP...ature=youtu.be


Have to be extremely light on the throttle to get anywhere, If i put my foot over 1/4 throttle she kangaroo's and boost spikes terrible, like hitting a brick wall. she's also a **** to start as well, feel's very slow and low idle on startup

Anyone any ideas as to what it can be

Replaced the following

New plugs, leads,coilpack and maf
Coolant Temp Sensor
Oil Temp Sensor
Fuel Pump
Camshaft Position Sensor
Boost Control Solenoid + Map Sensor ( all plumbing okay )
IACV replaced
Throttle Position Sensor replaced
New lambda sensor
Refitted TMIC and standard DV
Refitted Standard Downipe ( Ran worse so put back on)

Anyone else any ideas. Shes got a Y7 ECU, are these mappable at all.

Will give away the FMIC to anyone who helps sort it

quattroowner

iTrader: (5)

Fitted new ngk 7 plugs, run's a bit better, no so much bunnyhopping so to speak.

However its still slightly hesitant going threw the rev's. Hit 0.4 bar and it's like hitting a rev limiter.

Been told a Z4 Ecu is a good uprgrade to do over the Y7. anyone any opinions

Checked all hoses are new and clamped correctly
new CTS , knock, camshaft , oil sensor
new boost solenoid and map sensor (yet its still showing fault 45 after a ecu reset)
Also showing a fault code for the Throttle position sensor, It's been replaced. Anyone know it if needs adjusted or reset in anyway ?

quattroowner

iTrader: (5)

Found out the reason for CEL code 45

The yellow wire on the map sensor had broken, also the blue wire was heavily perished, Had to do a bodge replacement of wire until i can get my hands on a new Map Sensor plug with some wire's

Anyone got any idea's on resetting the TPS?