2.3L ('83-'97) wrong ecu?

[the_intimidator03]

I bought a 1991 Ford Ranger std cab 4x4 5 speed. I got a code for 22 (MAP) however do not find a map sensor or plug in on harness. I do have the mount on cowl (where my parts truck has one) After doing some inspection, I noticed the ECU was E9TF. Truck was built 08/90. I believe I have the wrong ecu for the truck. Could anyone point me in the right direction?

 

[franklin2]

I did a google search, it comes up with 5.0 computers but it also came up with a 1989 ranger. How many flashes or indications did you get when you first pulled the codes? That gives you a indication how many cylinders the computer is programmed for. 2 flashes, is a 4 cyl, 3 is a 6 cyl, and 4 is a 8 cyl.

Most all engines those years used a MAP sensor.

 

[the_intimidator03]

I have an OBD 1 scan tool

 

[scotts90ranger]

I did a google search, it comes up with 5.0 computers but it also came up with a 1989 ranger. How many flashes or indications did you get when you first pulled the codes? That gives you a indication how many cylinders the computer is programmed for. 2 flashes, is a 4 cyl, 3 is a 6 cyl, and 4 is a 8 cyl.

Most all engines those years used a MAP sensor.

The 2.3L switched to MAF in mid '90 model year so roughly around '90 (my '90 had a MAP sensor but was built in '89), I think it's similar to when the 2.9L switched to MAF as well.

With an E9 it's probably the wrong ECM, you're likely going to want a '90-92 ECM for it to work right.

 

[the_intimidator03]

that is what I figured, not sure the differences besides the manual vs auto. figure look for f0 or f1 ecu

 

[franklin2]

Here are some used ones in Oregon.

1989 Engine Computer Ford Ranger	C/R,2.9L,5SP	X​	9052D	$45​	B and K Auto Salvage USA-OR(La-Grande) Request_Quote 1-800-233-9640 Request_Insurance_Quote	2065​
1992 Engine Computer Ford Ranger	8/91,2.9L,5SP	X​	2272E	$45​	B and K Auto Salvage USA-OR(La-Grande) Request_Quote 1-800-233-9640 Request_Insurance_Quote	2065​
1989 Engine Computer Ford Bronco II	03/89,2.9L,5SP	C​	3845E	$45​	B and K Auto Salvage USA-OR(La-Grande) Request_Quote 1-800-233-9640 Request_Insurance_Quote	2065​
1989 Engine Computer Ford Bronco II	EEC Cont (Processor), MT, FED- MATCH?-CHECK	A​	03-017	$50​	One Stop Auto Wreckers USA-OR(Klamath-Falls) Request_Quote 1-800-452-1304 Request_Insurance_Quote	2260​
1989 Engine Computer Ford Bronco II	E9TF-G1A	A​	44865	$Call​	Supreme Truck USA-OR(Portland) Request_Quote 503-284-4171 / 503-284-4174 Request_Insurance_Quote	2272​
1990 Engine Computer Ford Ranger	6 CYL,M4SPD,RWD	X​	9M0044	$Call​	Pick A Part USA-OR(Independence) Request_Quote 503-838-4737 Request_Insurance_Quote	2306​
1990 Engine Computer Ford Ranger	2.9,5MT,ECM,CKID	X​	ENI308	$50​	B & R Auto Wrecking, Eugene USA-OR(Eugene) E-mail 888-752-1118

 

[scotts90ranger]

Those all look to be V6, price is reasonable...

I'd say you could borrow the one from the '92 I have in the yard but it doesn't run and I have a feeling it's that... I'd offer to check the junkyard by work but it's empty for winter (it floods, they just started emptying it yearly a couple years ago...)

 

[the_intimidator03]

I should have a new ecu in a few days, will update

 

[the_intimidator03]

I did not realize that I didnt say this 91 was the 2.3 4 cylinder

 

[scotts90ranger]

You're in the 4 cylinder section so I knew , some people just look at current active threads so it isn't always obvious...

 

[franklin2]

You're in the 4 cylinder section so I knew , some people just look at current active threads so it isn't always obvious...

I looked at his signature

 

[scotts90ranger]

I looked at his signature

ok, ya got me there... I've been bitten there before then I realize I'm one of those people that has 3 rangers on the property, 3 explorers, an F350, two Camry's and an old F Super Duty... sometimes ya gotta make it obvious what you're working on lol

 

[the_intimidator03]

yeah, I have 2 std cab 4x4 4 cyl rangers (one is parts rig) and 89 ext cab 2.9 4x4 daily

 

[SenorNoob]

This is weird to me. My 91 4.0 harness has a MAF and a MAP. The map is just left open to air as an atmospheric pressure sensor. Now I actually wonder if that could be related to my cold engine stumble on take off when outside temps are below freezing. I had completely forgotten about that. I used the "new" MAP from the 2.9...

 

[franklin2]

This is weird to me. My 91 4.0 harness has a MAF and a MAP. The map is just left open to air as an atmospheric pressure sensor. Now I actually wonder if that could be related to my cold engine stumble on take off when outside temps are below freezing. I had completely forgotten about that. I used the "new" MAP from the 2.9...

???. MAP means MANIFOLD absolute pressure sensor. That would be strange for it to measure atmospheric pressure.