Douglas Walker
Registered User
On my 90 sc i have a hesitation when accelerating from a stop or cruising speed. Im also only getting about 6-7lbs of boost at wot
If im in park and punch it off idle. It have a 2sec delay before the tach moves. You can watch the vac gauge go from -18 to about 1lbs of boost before the car reacts. And this is basically what happens when driving.
Ive pulled the intake off and all the piping resealed it, new vac lines, new plugs, wires, fuel filter. checked fuel pressure, 32 at idle, 50ish under boost. The motor has about 30,000 miles on it and has run like this ever since the old motor blew head gaskets. The motor was put in back when they would warrantee headgasket failure, so the car sits for long periods of time.
Ive changed DIS, Cam Sensor, coil pack, checked for broken balancer, tps voltage is in recommended range.
No codes are showing up. Im at a loss, what else can i check.
Would plugged converters cause an issue, Im sure there was alot of antifreeze pumped through them years ago.
O ya the car is completely stock, current odometer reading is 55,000
Thanks
Doug
If im in park and punch it off idle. It have a 2sec delay before the tach moves. You can watch the vac gauge go from -18 to about 1lbs of boost before the car reacts. And this is basically what happens when driving.
Ive pulled the intake off and all the piping resealed it, new vac lines, new plugs, wires, fuel filter. checked fuel pressure, 32 at idle, 50ish under boost. The motor has about 30,000 miles on it and has run like this ever since the old motor blew head gaskets. The motor was put in back when they would warrantee headgasket failure, so the car sits for long periods of time.
Ive changed DIS, Cam Sensor, coil pack, checked for broken balancer, tps voltage is in recommended range.
No codes are showing up. Im at a loss, what else can i check.
Would plugged converters cause an issue, Im sure there was alot of antifreeze pumped through them years ago.
O ya the car is completely stock, current odometer reading is 55,000
Thanks
Doug