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Supercharger makes spitting sound

T

Thomasp1717

New member
Hey, I have a 1998 Grand Prix, and under medium to heavy acceleration the supercharger kicks on and makes a loud spitting sound and the check engine engine light flashes, it's throwing the "P1646D, Boost control solenoid control circuit" code. I honestly have no idea what could be wrong. Never dealt with supercharges before, any help is appreciated :)
 


Flashing check engine light means possible catalyst damage.

Which useally leads to misfires.


If it was me I would replace all the spark plugs and replace the boost control solenoid.
 
I just put new spark plugs in about a month ago, so ill probably pickup a boost control solenoid and see if that fixes the problem
 




nope, they suck in our engine. iridium i or copper core is the way to go.

the plats cause misfires, like your getting with the sputtering. its a misfire or 6.......
 
the iridium's will last a good 70,000 miles or more. the copper plugs 12 to 15,000 tops, the copper are cheap at 2 bucks a plug. people with a good amount of mods run the copper for the most part. all stock stick to the iridium's.
 
or if you just got a replacement engine copper are best just in case the engine you got has mods and you didnt know. thats what i did and my car loves them
 


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