86 5.0 with 90 harness and a3m ecu

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 18, 2020

#1

• Apr 18, 2020

• #1

 

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 18, 2020

#2

• Apr 18, 2020

• #2

So I bought this ride, it's an 86 5 liter $700. The owner apparently didn't know what was wrong with it! I'm sure he did, but the car is wicked clean.. I ran through timing, made sure there was spark and fuel. Rough turning over. Finally realize that the crankshaft had about a quarter inch play. Previous owner told it was some sort of crate engine. After digging around I realized the Comp Cam heads. Rockers, alphabet cam and Scat 347 kit. Crankshaft was split in 2 after the first main. Metal particles wear everywhere cylinder walls were damaged. Parted out the engine.

 

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 18, 2020

#3

• Apr 18, 2020

• #3

 

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 18, 2020

#4

• Apr 18, 2020

• #4

It's an 86 with a 87 and up front. Sold the front and Hood to make way for 4eyes.

 

Reactions: Gs1987GT

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 18, 2020

#5

• Apr 18, 2020

• #5

So due everything going on in the world today, I managed to find a 90 hatch being parted out. The hatch was still running when I went to remove parts. Got the ECU A3M entire connecting harness with the engine harness $60. Also got the fuel tank with pump assembly and lines.

 

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 18, 2020

#6

• Apr 18, 2020

• #6

By the way, I put together an explorer motor for a friend. Nothing crazy. Gt40 setup. did add a b303 cam, 1.6 rocker, dual valve springs and Edelbrock intake.

 

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 18, 2020

#7

• Apr 18, 2020

• #7

I'm curious is if the 90 engine harness will work on the 86?

 

General karthief

wonder how much it would cost to ship you a pair

Mod Dude

Aug 25, 2016

28,087

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polk county florida

Apr 18, 2020

#8

• Apr 18, 2020

• #8

How much of the old harness is there?

 

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 18, 2020

#9

• Apr 18, 2020

• #9

General karthief said:

How much of the old harness is there?

Click to expand...

The only harness I was missing was the engine harness salt and pepper connection. Everything else was there. I keep on finding pinouts for 87 and up not for 86.

 

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 18, 2020

#10

• Apr 18, 2020

• #10

I already converted to mass air. just waiting to drop the motor in later on today.

 

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

Apr 19, 2020

#11

• Apr 19, 2020

• #11

So it's running like a champ. Only problem is that my PCV which was new broke! And the crank pressure is coming ove the vent tube on the valve cover! Any ideas?

 

General karthief

wonder how much it would cost to ship you a pair

Mod Dude

Aug 25, 2016

28,087

10,705

213

polk county florida

Apr 19, 2020

#12

• Apr 19, 2020

• #12

Not until you replace the pcv, is the screen clean?

 

8

86vertstang

New Member

Apr 17, 2020

11

1

3

Miami Florida

May 3, 2020

#13

• May 3, 2020

• #13

Yes, screen is hella clean. Seems like steam puffing out the oil filler. Seem to hydro or vapor lock?!!!?!