opti faulty?
#2
Re: opti faulty?
More details are needed. Like what year car, what exact codes, etc. Crank position sensor codes don't have any effect on performance. The sensor only monitors for misfires on an LT1.
#4
Re: opti faulty?
As stated, the CKP has no effect on performance. Although the circuit does have what appears to be a wiring problem and should be dealt with. Since your manifolds are "white" is it possible your cats are clogged causing the manifolds to get hot and your performance issues? Just unbolt them and give it try (with earplugs).
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