95 Saturn misfire

[RNMedic]

Okay got a cheap gas saver, it has a misfire at higher rpm with subsequent loss of power on acceleration. New plugs and wires, new air filter, got 158 k on it saturn bb recommended coolant sensor, 10 buck no change. Any suggestions?? John

 

[xjjeeper19]

Okay got a cheap gas saver, it has a misfire at higher rpm with subsequent loss of power on acceleration. New plugs and wires, new air filter, got 158 k on it saturn bb recommended coolant sensor, 10 buck no change. Any suggestions?? John

sl1 or sl2?

if it's the twin cam (sl2) check the plug wires at the coil pack for corosion

 

[RNMedic]

sc 2 that was my guess a coil problem, will check and let you know. thanks

 

[RNMedic]

checked some corrosion on coils

still loosing power 2800 rpm and up. no codes on the ecm, any suggestions??

 

[stu9114]

check for vac leak at intake manifold cyl #1 is a common spot for gasket to leak
use carb and choke clean spray area while engine is running a leak will change rpm