Speed governor -- under computer control

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Sep 17, 2008 | 06:26 PM

asavage

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From: Oak Harbor, Washington

Speed governor -- under computer control

Has anyone found a fix to disable the speed governor? When I run hard and fast, the van will only go so fast, and no faster. Engine/vehicle bucks/jerks hard. Only at very high speeds (above 90). My '89 3.0l didn't do this, but my '93 3.0l does, and it's annoying.

Sep 17, 2008 | 07:13 PM

96_4wdr

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From: Washington state

after market chip or programmer.
don't know if any are around anymore for OBD-I EEC-IV 3L or 4L engines.
the PCM cuts out random injectors based upon max programmed speed limiter.

Jet used to make one for Aero. Ranger 3L for same year should work. may have to be a custom to get the max speed you want and regular 87 octane gas.

JET Chips Modules Programmers

Sep 17, 2008 | 07:37 PM

asavage

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I'm not willing to move to Premium fuel.

How about killing the power to the PSOD via a manual switch? Anybody tried?

Sep 17, 2008 | 10:12 PM

Bear River

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Diablosport still makes the kits, thought the tuners are getting pretty rare.

Oct 17, 2008 | 07:21 PM

asavage

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Diablosport's website is an exercise in frustration. Can you furnish a clue as to what I'm looking for?

Oct 17, 2008 | 08:04 PM

Aeroman59

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From: Kitchener,Ontario,Canada

Quote:

Originally Posted by asavage

Diablosport's website is an exercise in frustration. Can you furnish a clue as to what I'm looking for?

Engine Tuner with which to change the RPM limiter. EEC IV is in the PCM so it needs to be compatible with that computer version. They are a bit outdated by now, but I believe the Mustangs of that era use the same engine computer..... set up differently of course. Know anyone who does track racing ? they will likely have one. Otherwise they are not cheap !
PMS Programable Engine Management System for 89-95 EEC-IV

Oct 17, 2008 | 09:20 PM

The Spruce Goose

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Larger tires? That would make you go faster, and look slower (on the speedo). That's the non electronic way.

bamachips makes a programmer for Rangers that might work.