I dissconnect the maf and the car runs smooth, connect the maf back up stalls right away.

 

Codes with maf connected is P0103 and disconnected P0102 Car runs somooth but has an oder from the tail pipe

 

I changed the mass air flow sensor again, car runs now time will tell. Thanks for your help again. Let you know in a week.
fgm

 

I had a feeling you were getting JUNK mass flow sensors.

 

Tech----Ran car now for a week after replacing the MAS, still stalls very hard starting and stalls out around 30MPH all the time. I now have a new code P0171 code. Still have not found any vaccum leaks. Some times the car runs nice and smooth no problems.

 

Hmm have you checked fuel pressure?

 

I have not checked the fuel pressure. Not sure how I would go about checking the pressure. I need to have special toolscorrect? If not, could you explain how to accomplish this please. I noticed a fitting at the end of the fuel rail with I believe is a needle valve in it.

The car runs if I dissconnect the MAS connector like you told me earlier, limp mode as you stated.

 

You will need to buy a fuel pressure gauge to be able to check the fuel pressure.

 

I'm going on VC for two weeks I will let you know when I get home. Car will sit until then.

 

fgm,

Hoped you had a wonderful VC.
I feel your pain, I just bought a 1998 S70 T-5 and am experiencing very similar things.
I'm gonna try a couple more things before I sell it. Hopefully, I can get it working so
that I can keep it.