The TB coolant bypass hose busted going down the interstate last week. I noticed that the duct for the MAF was loose after I saw the anti-freeze dripping out of it when I took it off to fix the hose. I have no idea how much A-F the engine sucked in on its short drive to the reststop. My question is -Does the 02 sensor give false readings with A-F cooked on to it? I have heard that the A-F turns into silica/silicon? and prevents the sensor from reading the A/F correctly. Or? does it make any difference?

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89 IROC-Z 5.7L 2.77 GEARS
130,000 MILES
ALL FREE MODS
K&Ns FILTERS
FLOWMASTER MUFFLER
PERFORMANCE RESOURCE CHIP
AFPR & PORTED PLENUM
Best 1/4 E.T. 14.09 @ 97.2 MPH
Best 1/8 E.T. 9.09 @ 77.4 MPH
Best 60ft. 2.03

[This message has been edited by whiteroc (edited September 25, 2001).]

 

not sure on the o2. just you are really lucky! of course too much would lock up your eng. even a little could cool a pistion too quick crack a ring or bend a valve. old timers barly use any water to clean carbon out of an eng.

 

Well then I'm REALLY glad all of that cool gas going into the engine for the last 133,000 miles did'nt crack anything -wheewhw!

 

You're right, coolant kills o2 sensors. I speak from experience. Atleast your spark plugs are clean now.

 

yup, they don't mix to well.

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- David
88' GTA 5.7L TPI MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series

 

whiteroc what I am saying is the water really cools stuff off quick and you use less gass than you think.