aviationstation
Registered User
I have a 95 SC 5 speed with 77k miles that, when I first purchased it, would miss & ping under load. I've recently replaced the Cam Position Sensor, plugs & wires & now it runs considerably better. However, under load or near WOT I get some pinging (even when cold) & the powerband seems a little choppy near the 3000~3500 and up range. I get a max of about 10~11 lbs boost & once and a while I hear a faint hiss (under load).
So, I'm hoping someone here can yea or nay what I speculate might be the problem...
To me it seems that there might be an intake and/or under boost (pressure) leak that:
Would limit boost to 10 lbs
Leans the mixture (intake leak) & causes the pinging
Results in the intermittent hiss sound under load ot WOT
The car runs great otherwise & I just resealed the upper IC tube & propane checked it.
Thanks!
M Randolph
So, I'm hoping someone here can yea or nay what I speculate might be the problem...
To me it seems that there might be an intake and/or under boost (pressure) leak that:
Would limit boost to 10 lbs
Leans the mixture (intake leak) & causes the pinging
Results in the intermittent hiss sound under load ot WOT
The car runs great otherwise & I just resealed the upper IC tube & propane checked it.
Thanks!
M Randolph