2001 Ford F150 w/4.2 liter engine

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backyard - 14 Jul 2005 04:36 GMT

I have no power and the exhasut get cherry red. I have all new cats and new
fuel pump. The fuel pressure only reads 30 psi at idle and 40 when you stab
the throttle. no fualt codes and the short and long term adaptve memeroy
read no lower than -12.

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Jim Warman - 14 Jul 2005 07:52 GMT

Strange that both long terms and short terms are so close together yet so
far off the mark. Obviously, they are taking fuel away from the motor.... It
would be nice to see a few more indicators..... upstream and downstream
O2s.... I'm almost positive that there should be some sort of code(s)....

I might think of chasing anything that could send the motor rich but, as it
is, our field of vision is too small to give really good advice...

> I have no power and the exhasut get cherry red. I have all new cats and new
> fuel pump. The fuel pressure only reads 30 psi at idle and 40 when you stab
> the throttle. no fualt codes and the short and long term adaptve memeroy
> read no lower than -12.

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Rob - 15 Jul 2005 03:55 GMT

> Strange that both long terms and short terms are so close together yet so
> far off the mark. Obviously, they are taking fuel away from the motor.... It
[quoted text clipped - 14 lines]
>>the throttle. no fualt codes and the short and long term adaptve memeroy
>>read no lower than -12.

does that thing have an air pump system ?

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backyard - 15 Jul 2005 14:32 GMT

no it doesn't have air pump

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Shoe Salesman - 15 Jul 2005 14:55 GMT

>I have no power and the exhasut get cherry red. I have all new cats and new
> fuel pump. The fuel pressure only reads 30 psi at idle and 40 when you
> stab
> the throttle. no fualt codes and the short and long term adaptve memeroy
> read no lower than -12.

Whats the fuel pressure supposed to be?
50? 60?

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