Technical Do I need to get my ECU reprogrammed/repaired?

[koalar]

So is it fair to assume the white wire is the actual ground?

Yes and the problem is between the red and black wire and the white

 

[WildFeraligatr]

Yes and the problem is between the red and black wire and the white

The red and black wire ties in to the green wire on the cam sensor and is (presumably) the +ve for the MAP sensor.

The white wire on the cam sensor ties in to the black and white wire on the MAP sensor and (i would assume) is the negative for both?

 

[koalar]

The red and black wire ties in to the green wire on the cam sensor and is (presumably) the +ve for the MAP sensor.

This is correct we have 5V at each sensor

The white wire on the cam sensor ties in to the black and white wire on the MAP sensor and (i would assume) is the negative for both?

Correct
It correct at the cam but wrong at the map

 

[WildFeraligatr]

This is correct we have 5V at each sensor

Correct
It correct at the cam but wrong at the map

What should it be reading at the MAP?

 

[koalar]

0V the same as the other end of the cable

 

[WildFeraligatr]

0V the same as the other end of the cable

That's what it's reading.

The only other cable reading 5V is the pink and black cable that connects direct to the ECU.

 

[koalar]

That's what it's reading.

The only other cable reading 5V is the pink and black cable that connects direct to the ECU.

But here you say the red and black is 5V

 

[WildFeraligatr]

But here you say the red and black is 5V

View attachment 418091

The red and black is tied to the green on the cam sensor which also reads 5v

 

[koalar]

The red and black is tied to the green on the cam sensor which also reads 5v

The red and black should tied to the white which is 0V

 

[WildFeraligatr]

The red and black should tied to the white which is 0V

That's where the white and black is tied to.

 

[koalar]

That's where the white and black is tied to.

White and black from MAP goes to the ECU

 

[WildFeraligatr]

White and black from MAP goes to the ECU

So i need to rewire then?

Because what I have is

Pink/black (5v) and brown (0v) go to ECU
Red/black goes to green cam wire (positive, both 5v)
White/black goes to white cam wire (ground, both 0v)

 

[koalar]

Are you beeping the wire or following them

 

[WildFeraligatr]

Are you beeping the wire or following them

Following them and checking continuity at the end.

 

[koalar]

So i need to rewire then?

No no no

Because what I have is

Pink/black (5v) and brown (0v) go to ECU
Red/black goes to green cam wire (positive, both 5v)
White/black goes to white cam wire (ground, both 0v)

Seem pretty different

 

[WildFeraligatr]

All the wires go to the ECU

Yes - I've been checking at the individual pins that they feed to on the ECU socket.

 

[koalar]

Have to look at the diagrams again

 

[WildFeraligatr]

So basically

Brown wire and black/pink wire go straight to the ECU
Red/black wire joints in with the green wire from the cam sensor and then to the ECU
White/black joints in with white cam wire then goes to ECU

 

[koalar]

Flyby wire 4x4 appeared to match

 

[WildFeraligatr]

Flyby wire 4x4 appeared to match

View attachment 418113

Almost - the green and white on the cam would still be the other way around in terms of what's jointed into it.

Edit: no wait ignore me, i didn't see the dotted line indicating the white wire properly.

I'm gonna pop out on my lunch break and backprobe the cam/crank sensors to see if they pick up on engine rotation