Need custom EEC-V tuning for governor operation

Used on the 4cyl 99-06 ranger with single coils and theft disabled.
Acesales
Posts: 11
Joined: 2022 Oct 11, 22:47
Location: Owatonna, MN
Vehicle Information: 2003 JLG Boom lift 2.5L Ford EFI running on a 1998 Ford Ranger EEC-V XL5F-12A650-DA DTR0

Need custom EEC-V tuning for governor operation

Unread post by Acesales »

I have a 2002 JLG 600 boom lift running a Ford Power Products 2.5L EFI four cylinder gas/propane engine. The computer failed and has been obsoleted. Tried to have ERD fix it but they gave up. So I installed a 1998 Ford Ranger engine harness and EEC-V computer. Starts and runs great. It needs to be governed at idle and at 1850 RPM. I installed an electronic governor that is operating the throttle body. It does some erratic things that I think may have to do with the stock EEC-V programming. Can anyone suggest a solution for this? Can the EEC be programmed to operate more like a carbureted engine or similar? Propane operation is not important. It is currently running on 87 pump gasoline.Thank you, Alex
Attachments
20221003_085733~2.jpg
20221004_085258.jpg
20221004_085317.jpg
20221005_104634.jpg
wwhite
Posts: 313
Joined: 2021 Feb 16, 15:53
Location: Victoria, BC, Canada
Vehicle Information: 1994 Flarside, XLT, 351w E4OD
SD48b, Quarter Horse, Burn2

Re: Need custom EEC-V tuning for governor operation

Unread post by wwhite »

Hmm, interesting.
The Speed Density EEC-IV for 7.0L heavy truck applications has a governor in the code:
7.0L GOVERNOR MAP SIGNAL (GOVHP = 1)


OVERVIEW

The DPI output, HSO-0, is used on the 7.0L heavy duty truck application as an
input to the stand alone governor. It is used to provide information about
engine load, compensated for altitude, so that high governor gains can be used
to achieve a quick response on an unloaded engine, while lower gains can be used
on a loaded engine for normal throttle control. The value MAPPA is used as a
load parameter compensated for altitude.

The signal is a 100 Hz pulse width modulated signal.
I don't know if EEC-V has that option.
jsa
Posts: 260
Joined: 2021 Feb 16, 15:46
Location: Australia
Vehicle Information: 95 Escort RS Cosworth
2.0 YBP
CARD / QUIK / COSY / ANTI
GHAJ0
SMD-190 / SMD-490 EEC-IV

Binary Editor
ForDiag

Re: Need custom EEC-V tuning for governor operation

Unread post by jsa »

What is the hardware code on the boom lift EEC?
Acesales
Posts: 11
Joined: 2022 Oct 11, 22:47
Location: Owatonna, MN
Vehicle Information: 2003 JLG Boom lift 2.5L Ford EFI running on a 1998 Ford Ranger EEC-V XL5F-12A650-DA DTR0

Re: Need custom EEC-V tuning for governor operation

Unread post by Acesales »

Interesting about the 7.0L governor. The boom lift engine is made by Ford Power Products but the computer was not made by Ford. I was told that the end user (JLG) supplied their own operating program but I'm not sure. I still have the old computer if anyone could pull the information from it. I have the old harness, too.
wwhite
Posts: 313
Joined: 2021 Feb 16, 15:53
Location: Victoria, BC, Canada
Vehicle Information: 1994 Flarside, XLT, 351w E4OD
SD48b, Quarter Horse, Burn2

Re: Need custom EEC-V tuning for governor operation

Unread post by wwhite »

Does your JLG ECM look like this:?
Image
Screenshot 2022-10-12 205014.png
red5.0fogger
Posts: 148
Joined: 2021 Mar 22, 15:58
Location: Newington CT
Vehicle Information: 1986 Mustang GT, Stock block, TFS 170 Heads , N41 cam, ported cobra intake, nitrous, T5 , 3.73s

Re: Need custom EEC-V tuning for governor operation

Unread post by red5.0fogger »

Can you just set the rev limiter lower in the tune? if all else fails you can make an air intake tube restrictor. It might take quite a bit of trial and error.
Acesales
Posts: 11
Joined: 2022 Oct 11, 22:47
Location: Owatonna, MN
Vehicle Information: 2003 JLG Boom lift 2.5L Ford EFI running on a 1998 Ford Ranger EEC-V XL5F-12A650-DA DTR0

Re: Need custom EEC-V tuning for governor operation

Unread post by Acesales »

Here's the old computer Ford 1U1L-12A650-CB or JLG 1600367. It operated a Bosch motorized throttle body 1U1L-9E979-BA and used a MAP sensor instead of a MAF. The rest of the parts on the engine appear to be stock Ford stuff.
Attachments
20221013_170024.jpg
20221013_165826.jpg
20221013_165543.jpg
20221013_165514.jpg
red5.0fogger
Posts: 148
Joined: 2021 Mar 22, 15:58
Location: Newington CT
Vehicle Information: 1986 Mustang GT, Stock block, TFS 170 Heads , N41 cam, ported cobra intake, nitrous, T5 , 3.73s

Re: Need custom EEC-V tuning for governor operation

Unread post by red5.0fogger »

How does the new governor know what to do? when does it raise rpm? I think the simplest solution is to set the engine for single speed operation with a high idle around 1100-1300 rpm if that will run the machine. If the rpms are too high it could cause an accident, it being a tall boom lift.
Acesales
Posts: 11
Joined: 2022 Oct 11, 22:47
Location: Owatonna, MN
Vehicle Information: 2003 JLG Boom lift 2.5L Ford EFI running on a 1998 Ford Ranger EEC-V XL5F-12A650-DA DTR0

Re: Need custom EEC-V tuning for governor operation

Unread post by Acesales »

The new governor generates an RPM signal using a magnetic pickup installed close to the flywheel ring gear. It generates an AC voltage (frequency) of about 1 to 6 volts. The governor uses that data to modulate a magnetic coil inside the actuator that then opens/closes the throttle body butterfly. Problem is the Ford Ranger computer idling is about 10 degrees retarted timing. Barely move the throttle shaft and RPM jumps up around 1500 and the timing jumps to about 20 or degrees advanced. I assume that is part of the Ford EEC-V programming?
I have messed with the throttle body idle stop screw. I can get it to run revved up around 1500RPM consistently but as soon a load is put on it bogs way down. Also, you want the engine to idle when you're not using the hydraulics to save fuel.
decipha
Posts: 4955
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
Vehicle Information: Work Truck
'19 F-150 3.3L

Re: Need custom EEC-V tuning for governor operation

Unread post by decipha »

do you have an idle air control valve?

seems like it would be simple to dial in
Post Reply