On Tue, 12 Jul 2005 19:35:29 -0500, Lawson[rem0ve]news rearranged some
electrons to form:

> Thank you.
>
> I have a custom install that I am trying to sort out. It uses a MAF
> sensor and a 1993 A3M computer. There is a jumper between the anti fuel
> relay and the eec power relay. I assume that is to defeat the gas shut-off.
>
> My son and I tracked down the wiring from a mustang wiring diagram. The
> engine is the forged piston year... i believe earlier than the wiring.
>
> The wiring for the lower portion like engine coolant sensor, throttle
> position, EGR valve position, barometric pressure, sensors all come from
> the 1989-90 diagram.
>
> The wiring to the computer for the upper part of the diagram comes from
> the 1991-93 wiring diagram. fuel pump relay, canister purge, injectors,
> MAF sensor, etc.
>
> The engine is not running well, and I am trying to figure out what I
> have and how to diagnose it. I just went through all the wiring to make
> sure all connections and wire were good. Now I am back to tracking down
> issues.
>
> My original question you answered was regarding a local mechanic that
> looked under my hood. He said that there should not be a barometric
> sensor on the MAF engine. Obviously that gives you an idea of what I am
> dealing with locally.
>
> I am trying to do the work myself at this point. The motor is in a 1975
> bronco. I sometimes go off-roading and worry something may shake loose
> and I would have no idea what to expect. At this point, I know most of
> the elements, now I just need to figure what to fix.
>
> The mustang wiring is only wired with four wires to the bronco. Other
> than that the system is self contained. I just have to figure out some
> problems.
>
> - low power
> - rich fuel
> - high idle
> - if gas punched or revved at all, it does not idle down very quickly
>
> Those are some of my problems. I am still looking for local mechanical
> assistance, but I am trying to support local mechanic with this news
> group. I appreciate any thought my mechanic look more closely at.
>
> The mustang motor is all stock except for a 4° cam advance to lower the
> torque.... stock cam, forged heads, in-tank mustang fuel pump. I am
> using the old bronco pulleys, water pump and such. Made the conversion
> easier.
>
> Well, thanks again for your answer. The mechanic will help I am sure.
> It's not the type of work mechanics generally seek out. Not much profit
> involved. He is just going to give me a couple hours and check some
> things. If I can suggest something from this message board, all the
> better. I can certainly check many things myself.
>
> Lawson
>
>

any codes?

>
> eec power relay fuel Relay anti fuel relay
>
> Musttanguy wrote:
>
>>They all use a MAP sensor, the earlier is connected by hose to intake
>>while the later is vented to the atmosphere
>>
>>
>>

--
David M (dmacchiarolo)
http://home.triad.rr.com/redsled
T/S 53
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