Installed ultimate o2 mv ?

spooldup

Super Member
When i first got the new ty i dm'd her. The most kr i had was 1 degree on 93 mobil gas, o2 mv's 970's. I replaced the rotted vac lines, put 94 sunoco in, pulled egr crap out, installed dequick afpr set at 42lbs with the engine idling with my finger covering the hole in the vac line, and now i have as much as 6 degrees of knock. The ty feels allot faster now but my o2 mv's went down to the 930's. Any idea's? Should i go back to the stock chip?
 

dgoodhue

BuSTeD 4.3
Add more fuel. If I remember right the ultimate was programmed for 45psi. Don't get too caught up in o2 mv too much, a narrow band o2 isn't all that accurate.
 

spooldup

Super Member
I know that it's not accurate but there is a definte change. I reread my directions and i did not see anything that said to run it at 45 but i guess i'll give it a shot.
 
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