Hi- I have a '98 S70 GLT with the 2.4l engine with the low boost turbocharger. The car has 163K on it. I bought it on Craigslist 2 years ago w/139K on it from the original owner for $1950. I love this car! The problems started about 2 months ago. When I was at a stop sign I stepped on the gas the car kind of bogged out so I put it in Neutral and gave it gas and it recovered. The check engine light went on and stayed on until I cleared it although it seemed to be running fine! The code was a PO243. I drove the care daily for a month and it happened again with the same code. Then again in 2 weeks and then again in 2 days! Does anyone have any suggestions on what could be causing this and what I need to do to fix it? I NEED HELP!!
UPDATE: The next day the car gave me lots of problems! I start off slowly it starts off OK and then when I step on it and the car loses about 80% of it's acceleration power! Even though the engine lost like almost all of it's power and it was acting worse than it had been earlier in this thread the CHECK ENGINE light didn't come on again!

 

Testt

 

Take a look at this video;

I bet this will help you alot in pointing you in the right direction!!

 

Thanks for your input! I watched the video and my friend cleaned the MAF Sensor and so far no problems (yea!) Actually the problem stopped before we cleaned the MAF. Keeping my fingers crossed and hoping the problem doesn't return!
THANKS AGAIN!!