Just bought a 90' SC, having boost related problems

66_Fairlane_289

Registered User
when under load, at like 35 mph in 3rd and I try to accelerate the rpms stay at like 1500 and it goes into boost and knocks, still without accelerating. Any ideas on what could cause this?
 
There are many things that will do this so not trying to make you "lock on" to one thing but it's either some sort of cam/crank sensor timing issue or you have a wasted harmonic balancer that's messing with things. It's a gutless wonder under boost no? How high does the temperature gauge go?
 
There are many things that will do this so not trying to make you "lock on" to one thing but it's either some sort of cam/crank sensor timing issue or you have a wasted harmonic balancer that's messing with things. It's a gutless wonder under boost no? How high does the temperature gauge go?

I'm thinking its a sensor cause the check engine light is also on and I'm picking up a scanner tomorrow. And the temp gauge reads just above half
 
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