• Hello Guest, welcome to the initial stages of our new platform!
    You can find some additional information about where we are in the process of migrating the board and setting up our new software here

    Thank you for being a part of our community!

Volvo 240+t misfiring

F

fgaith

Member
Joined
Oct 10, 2022
Location
Baltimore Maryland
So I finally got everything figured out with my +t conversion of my 1990 Volvo 240. I got everything on and fired it up and it revs up great. The problem I am having is that when I go into drive and put load on the engine it starts to misfire and loses all power while barely managing to continue to run. It also billows white/blue smoke from the exhaust suggesting that there is oil getting into my fuel mixture somehow. My thought is that either the turbo seals are bad or I have a blown head gasket. Everything was fine with the car before starting the project. Anyone have any other ideas on why this would be happening?
 
Harlard said:
You are not giving enough details on what you did to your car. You will need to go into detail about every single thing that you changed.
Click to expand...
I mean the only things I did with the oil system is drilling into the pan for the drain and using a hardline from the spot on the block right next to the water pump to the turbo. I also got the pcv system which I have heard can cause this routed it to after the amm and before the turbine and added a one way check valve to the vacuum line running to the intake from it
 
What happens when you rev it at idle? Did you put massive injectors in? Do the big amm swap? Are the plugs fouling? Black or oily soot in the tailpipe? Head gaskets don’t blow just because you turbo’d the car.
 
My coolant temp sensor is good, I did swap to 850 turbo injectors, ecu and ezk off of a 940 turbo, when I rev at idle it revs up fine only does bad stuff when load is on it
 
1) Where does the big hose off the oil separator box go to? Do you have a small hose off the flametrap? If so, where does it go? And where does the hose off the turbo CBV go to?

2) Have you pulled off the compressor-to-intercooler hose, and the intercooler-to-throttle body hose, and checked for dripping oil? They should be dry-ish.
 
You must log in or register to reply here.
Back
Top