89pgt running rich?? Keep failing plugs out! - Mazda MX-6 Forum
 
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post #1 of 3 (permalink) Old 5-4-12, 12:18 Thread Starter
 
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89pgt running rich?? Keep failing plugs out!

Ok so I thought I figured out the problem but seems I'm getting close. New plugs seem to help car ran and boosted harder. My throttle body couple pop of at 15psi so I let it run on limp mode home. Let the car set for a while then re started it. Go to the store in my vr6 come back a few hours later I hook everything back up. Car won't start hmm? I pulled the plugs to do a compression test which is 130 across the bored. The plugs were soaked like the sat in a cup of fuel. So I crack the motor a few times to spit any extra fuel out so it wouldn't hydro lock. Cleaned the plugs re installed them. The car after a few short cranks starts up! Now the check engine light is on. I tried to check the codes by grounding out that wire by the driver side Strut tower. Nothing just stays a solid cel. I disconnected the ground off the battery and held the break for 30+ seconds and re connected the battery. Car starts up fine but again a solid cel? I'm thinking o2 sensor? I have another one. I'm going to install that and my Wideband tomorrow to see how rich she is. But I'll do a before and after on the o2 sensors. Could it be ecu? The chip? Combination of bad vaf and o2 sensor?

Would you have any input on this matter? I really need help! Lol
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post #2 of 3 (permalink) Old 5-4-12, 19:17
 
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According to your other thread related to this matter (don't know why you started another one) you have codes 8 (VAF) & 10 (intake air thermosensor)

Have you gone through the test & repair procedures in the WSM for these?

Doing that should give you some indication of what to do next, whether it be replace the VAF, repair the harness or replace the ECU.

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post #3 of 3 (permalink) Old 5-4-12, 23:05

 
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Quote:
Originally Posted by mx_masta View Post
According to your other thread related to this matter (don't know why you started another one) you have codes 8 (VAF) & 10 (intake air thermosensor)

Have you gone through the test & repair procedures in the WSM for these?

Doing that should give you some indication of what to do next, whether it be replace the VAF, repair the harness or replace the ECU.
that's nonsense...why would he fix what the ECU is telling him what's wrong??

I also agree...why start another thread for the same issue?

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