Fuel pump is weak. I like this guy for the 190 LPH pump.
http://www.autoperformanceengineering.com/
.
.
> Hello, This is my first post to the group. My 93 SHO
> MTX generally runs very well. However the 4-5 times
> per year the temperature exceeds 95 degrees the SHO
> will stall and then it will have to cool 15-20 minutes
> before it will restart. Then when
> it gets hot again it will stall again.
>
> I ran the codes and they were: 172, 176, 556, 557,
> 542.
>
> Has anyone experienced this type of problem that only
> happens in extreme heat? Any input you could pass on
> would be greatly appreciated.
>
> Thanks.
>
> Mike
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