i just bought an gn today it runs good its fast but when i really put my foot in it the boost gauge goes all the way to the end and the car starts surging and popping the car has 75,000 miles on it i think it has never had a tune up it has the original coil pack on it too and wires please help
popping from the engine
- Thread starter the wrath
- Start date
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Check out this link and do EVERYTHING as instructed!
http://www.gnttype.org/maint/basics.html
This will get you started in the right direction especially if the car appears to have been neglected.
Keep your foot out of it until you get a scan tool and boost guage! The popping can be caused by a lean condition, bad plug wires, coil pack, over boost or a combination of all 4! This can damage your engine in short order!
The stock fuel pumps were barely adaquate when the cars were new. Your first modification should be a Walbro 340 pump and hotwire kit available through Racetronix (check vendor area) adjustable fuel pressure regulator and a fuel pressure guage. Also, change your fuel filter IMMEDIATELY!
This should keep you busy for a while! Get caught up on maintenance then we can play some more
Have fun!
Check out this link and do EVERYTHING as instructed!
http://www.gnttype.org/maint/basics.html
This will get you started in the right direction especially if the car appears to have been neglected.
Keep your foot out of it until you get a scan tool and boost guage! The popping can be caused by a lean condition, bad plug wires, coil pack, over boost or a combination of all 4! This can damage your engine in short order!
The stock fuel pumps were barely adaquate when the cars were new. Your first modification should be a Walbro 340 pump and hotwire kit available through Racetronix (check vendor area) adjustable fuel pressure regulator and a fuel pressure guage. Also, change your fuel filter IMMEDIATELY!
This should keep you busy for a while! Get caught up on maintenance then we can play some more
Have fun!
