Hello:

changed spark plugs 2days ago with know problem.. the problem is when you cranked up the engine the idle started to get lower until it dies out. any advice what could be wrong with the vehicle.

 

Hard to say RP. How long is it running for before it dies? when it runs is it smooth or rough? Back track and double check everything you did. Good Luck.

 

Tried running the car after i changed the spark plug. It seems that the computer is not reading it and i back track several times & double check everthing i did. Only i can think of is the fuel pump & fuel filter needs to be replace. Is there a way i can reset the computer?

 

Since you had to remove MAS to change sparkplugs, ensure you reinstalled it correctly.

Hopefully you installed OE sparkplugs and not Platinum 4s or something.

 

I'm pretty sure that i installed it correctly.. Sparkplugs i used was Platinum 2s.. I was told by the technician who works at MB dealer to use Platinum 2s..

 

I would go to a reputable mechanic or the dealership for further diagnostic check. You could waste alot of money and time on guess work. If you had no such issues prior to changing plugs then it may not be a fuel pump or filter issue.

 

did you gap them corectly?