God forbid it would be the dreaded intake manifold failure causing one
or more cyls to burn lean!



Backyard Mechanic wrote:

> If it pings at full throttle but not at tip-in, you likely have a fuel supply
> problem.
>
> And the O2 sensors wont see it because they arent looked at at WOT
>
> Filter, pump, line kink
>
>
>
> opined in om:
>
>
>>Car is pinging every new and then at full throttle... maybe 1/5 times. It's
>>very unnerving. Also, I'm losing about a 1/4 of a quart of oil every 3k
>>miles. I'm going to clean the air filter today, clean sensors, I already
>>replaced EGR valve. What else would you recommend I do? Thanks in advance.
>>Btw, running 91 octane (designed for 87, but on 87 it pings worse).
>>
>>-Mike
>>
>>--
>>A happy kid behind the wheel of a 98 Mustang GT
>>Cold air intake
>>FRPP 3.73 gears
>>Steeda Tri-Ax Shifter
>>Full Boar turbo mufflers
>>Hi-speed fan switch
>>255/60R-15 rear tires
>>Subframe connectors
>>
>>
>>
>>
>>
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