HELP!!

[RyanC93]

so I will tell you the full story about what has happened to my car .

I wanted to replace the cam follower on my 2.0 tfsi 2007 cupra and the brass bleed valve had rounded and I had no way of getting it off to get to the bolt holding the fuel
Pump on , so I drilled it off and replaced cam
Follower and thought I had cleaned all
Of the brass from inside the pump but turned out I hadn’t , then I took the car for a drive and it felt like the car was been starved of fuel and then I heard a sort of bang, limped the car home , then had it towed to a garage , where I had brand new s3 injectors, new HPFP , fuel filter , spark plugs , oil fitlter and change, all the fuel lines cleaned and the fuel tank dropped and cleaned the car fired back up, but didn’t have any turbo pressure when driving with the original turbo , took it back and I bought a Brand new hybrid turbo , ttrs LPFP and a custom 165 bar fuel return valve , uprated map sensor , fuel pressure sensors and fitted all of these parts and the turbo is doing exact same as before barely passing 0 on the gauage , it is coming up with these 2 fault codes in the picture below , the garage have tried a new diverter valve and replaced every sensor and nothing has making any difference , is there any chance that it could of taken the stage 2+ map off what was already on?

 

[ZiggyEP3]

It comes across like there has been some wires damaged in the no signal areas. Also with the plugs out the cylinders could be checked with a snake cam to check the pistons are ok if it was running lean. Would mole grips not grip the old schrader valve to get it unscrewed so a new one could go in?

It does look like th car playing it safe with the boost as it cant see the recirc valve and detecting a knock.

 

[R3k1355]

Probably shouldn't have changed all that stuff at once, now you've no idea what happened.

Hopefully it's just a wiring issue, left something unplugged or damaged a wire?
Could it be possible they've mixed the plugs up and got the wrong thing plugged in?

 

[Rusty2k]

Check the J757 relay. If I recall correctly that supplies power to both the parts the ECU is throwing fault codes for.

 

[RyanC93]

Ziggy the engine is running fine just without any boost , and the garage says it would
Be ok to drive to a specialist if needs be, every time I used mole grips the valve just kept crumbling more and more

Rek i don’t think it was the plugs because the turbo wasn’t even boosting before the new
Plugs went In?

And thanks rusty I will
Inform the garage now , i haven’t had my car
For over 7 weeks now , getting desperate ,

Is there nothing else what the garage could do
To try and diagnose this fault ?

Thanks for the suggestions/help!

 

[RyanC93]

Rusty, do you know where the relay is located ?

 

[Rusty2k]

Not sure for your exact model but it will be in the engine bay somewhere, possibly quite close to the ECU.

 

[RyanC93]

Had a quick look , I think it’s under the steering wheel , cheers