I bought a 92 240 5 speed with a 3.1 fuel system and at the time I knew verry little about volvos and working on cars in general so I thought it would be a good project car to start on. Recently I've been trying to do a +T conversion and so far it's been giving me alot of trouble.
Me and a buddy pulled the engine, changed the seals, put all new gaskets on with a VX turbo cam from IPD. We get the engine back in the car and it doesn't run (of course) so after a few weeks of trouble shooting the list so far is
- New tps sensor
- New O2 sensor
- New spark plugs
- I'm using the ecu and ezk off of the donor car we got the turbo from (1993 940T)
- No vaccum leaks
- Good fuel pressure
My issue currently is I can start the car and it will idle perfectly as long as the MAF is unplugged and it can rev as long as you do it slowly, trying to quickly rev it will result in it bogging down and dying. Whenever the MAF is plugged in it hardly starts and when I do get it started, it idles horribly and pressing down on the gas halfway will cause it to loose all power (what I'm thinking is a fuel cutoff idk). There is also no cutoff when the MAF is unplugged.
However whenever I switch out the ecu to the original 240 one the opposite happens, the car will idle perfectly with the MAF plugged in and it can rev fine. When you try to drive the car like this though there is absolutely no power and immediatey wants to die while in gear even if it's barely rolling with the clutch hardly let out, its like trying to drive while starting in 5th gear.
I recently just discovered that I have a 4 pin 3.1 MAF and fuel system on my car. I've already ordered a new one just to test but untill it arrives I'm wondering if there is anything different with the MAF that causes a +T conversion not to be possible. I would just assume it's a faulty or broken MAF except for the fact that before the +T conversion the car ran perfectly fine.
Any thoughts on what's wrong?
Me and a buddy pulled the engine, changed the seals, put all new gaskets on with a VX turbo cam from IPD. We get the engine back in the car and it doesn't run (of course) so after a few weeks of trouble shooting the list so far is
- New tps sensor
- New O2 sensor
- New spark plugs
- I'm using the ecu and ezk off of the donor car we got the turbo from (1993 940T)
- No vaccum leaks
- Good fuel pressure
My issue currently is I can start the car and it will idle perfectly as long as the MAF is unplugged and it can rev as long as you do it slowly, trying to quickly rev it will result in it bogging down and dying. Whenever the MAF is plugged in it hardly starts and when I do get it started, it idles horribly and pressing down on the gas halfway will cause it to loose all power (what I'm thinking is a fuel cutoff idk). There is also no cutoff when the MAF is unplugged.
However whenever I switch out the ecu to the original 240 one the opposite happens, the car will idle perfectly with the MAF plugged in and it can rev fine. When you try to drive the car like this though there is absolutely no power and immediatey wants to die while in gear even if it's barely rolling with the clutch hardly let out, its like trying to drive while starting in 5th gear.
I recently just discovered that I have a 4 pin 3.1 MAF and fuel system on my car. I've already ordered a new one just to test but untill it arrives I'm wondering if there is anything different with the MAF that causes a +T conversion not to be possible. I would just assume it's a faulty or broken MAF except for the fact that before the +T conversion the car ran perfectly fine.
Any thoughts on what's wrong?