[924cgt]

My Lt1 has been getting rotten fuel mileage from loss of the high res signal. Tailpipe is black and sooty and im getting 10MPG. I want a new opti, but Im on a budget. This opti looked promising to me but maybe it is junk like all the rest?

New Optispark Distributor 94 95 96 97 Camaro Corvette | eBay

 

[steveo]

oh god no dont buy that thing they're junk

try one of these instead, they're a great deal

95+ Chevrolet Performance Replacement Optispark Distributors 1104032 - SummitRacing.com

93-94 Chevrolet Performance Replacement Optispark Distributors 10457702 - SummitRacing.com

 

[shoebox]

My Lt1 has been getting rotten fuel mileage from loss of the high res signal. ...

Say what?

 

[FastLT1]

It also says the description "AC Delco does not manufacture these items anymore. If someone says it's made by AC Delco, they're lying to you. Please don't buy from these idiots."

 

[steveo]

Say what?

im guessing he's referring to the fac that a missing high res pulse kicks you into open loop?

 

[shoebox]

im guessing he's referring to the fac that a missing high res pulse kicks you into open loop?

Don't think it does. The thing is...how are you going to constantly monitor the signal to see if it is there?

 

[steveo]

the ecm does that for you.

i recently threw a high res pulse missing code. my fans turned on, so im pretty sure it went open loop on me (didnt log though).. it certainly did run richer..