Broken Vvti

[Lex1S200]

Hey guys!

I have onwed my car for 4 years and has aleays been amazing to drive!

The past month has been hell! so...

My car has no power what so ever any more during acceleration through all gears, however its idles perfectly.

So over the past month or so i have:

Replaced the oil control valve/VVTI solenoid

Replaced the vacuum sensor

Replaced all sparks

Replaced all coil packs

Tested IAT sensor

Tested throttle body motor/sensor

Cleaned throttle body

Changed air, oil and filter

I have come to a stand still so have taken it to a specialist Japanese car garage yesterday and they have:

Checked theknock sensor
Checked the inlet manifold flap
Checked exhaust gas pressure
Engine compression test
Fuel pump pressure test/checked fuel injectors

They have come to the conclusion that its the VVTI cam pulley not functioning properly, now ive done some forum reading and apparently theis can leak and the o rings inside the crank/pulley can become rigid over time and leak.

During the live data tests he carried out at the garage he said he can see the VVTI system is not switching off, and rotating like it should, like its stuck and not fucntioning, giving me less torque and power through all gears...

Now does this does sound like what is happenning when im driving the car.

Does this sound familiar to anyone on here with more knowledge than me???

Any help will mean the world!!

Cheers!

[ColinBarber]

why so many parts changed?

are you getting any error codes? If the VVTi isn't working then the position sensors should detect that and throw an error.

[Lex1S200]

why so many parts changed?

are you getting any error codes? If the VVTi isn't working then the position sensors should detect that and throw an error.

So many parts changed because.. it all started 2 months back with the car misfiring in a huge way, thats why the coil packs and sparks were changed. This fixed the misfiring and ever since then it has been experiencing the fault i talk about above.

Unfortunately the car has no error codes what so ever so it feels like im going round in circles eliminating bits as i go...

What else could it be if not the VVTI system as diagnosed by the garage i took it to recently??

Im in need of more suggestions or im actually going to have to sell up :-(

[allenhh]

Just a thought, if this fault appeared when you changed the coils and sparks, doesnt this point to them being the problem?