Rick Carter

On the 25 pin Bosch 2.2 LH Jetronic reading left to right with 1 being the first pin out on the bottom left row of 13 and 25 being on the top right row of 12 here is the function of the pin outs.
1. Trigger dwell
2. Coolant sensor
3. Closed throttle
4. Starter solenoid
5. System ground
6. Intake ground
7. Intake load
8. Burn off
9. Battery positive via relay
10. Idle servo pole
11. Ground
12. Full throttle
13. Intake stage
14. Idle CO
15. Train Switch
16. Air Cond
17. Relay Control Ground
18. Ignition Switch Positive
19. Limp
20. Ex Oxygen Sensor
21. Relay Control Ground
22. Diagnostic Integer
23. Idle Servo Pole
24. EZK Load
25. Ground

The above is from a diagram I found on Injectronics, an Ozzie site, while surfing.

aggravation

Sweet! Now can anyone tell me how to tap into some of those and send the signal to the Innovate Motorsports DL-32?
For example, can I retrieve coolant temp. there, or wot switch data...
What is "intake load"? Is it MAF volts?
Does anyone know what kind of voltage or signal is present on those pins so I can try and set up the DL-32 to translate it into data it can log.

Basically I'd like to be able to log as much data as possible, similar to the System Monitor page of the SharkTuner software but without having to have the SharkTuner attached to do it.

Of course I'm assuming I can actually get some leads attached to the plug in a way that doesn't compromise the operation of the device. Certainly it would lend itself to a permanent solution more so than the way the SharkTuner attaches. I'd love to be able to permanently use the SharkTuner for it's data logging and system monitor display capabilities long after I finish using it for tuning but there isn't any practical way to do that.

Rick Carter

This is from Louie's SMT-6 85/86 install info. The MAF ouput wire is pin 7 of the LH plug, it as well as the EZK ouput wires, pins 15 & 32 of the EZK plug are shielded.

AO

Edit: Sorry. I didn't realize this thread was for 85/86 LH2.2. I'll leave the post in case someone finds it during a search. Below is for LHx.x for 1987+

Don't forget the EZK, followed by the Central warning unit (for MY91+), but I don't know if you can get anything useful from the CW - just posting becasue I had it handy. I'm currently tapping into pin 13 of the EZK to get the RPMs. Works great!

I asked John Speake about using 23/6 to get the vehicle speed, but he said that was for the engine speed - I don't quite understand that, but he's the boss. He suggested maybe using the input to the cruise brain for that.

Look at this thread to see how to get injector duty cycle. Super simple to do!

https://rennlist.com/forums/928-forum/175882-lm-1-3-wide-band-o2-logging.html

Rick Carter

I just noticed "aggravation", you have an 88 so the 2.2 LH info doesn't apply to your car.

aggravation

Lol, I was just digging into my manuals to check that! I thought it sounded wrong. Thanks for the warning though.

PorKen

I can't remember who made this, but the 84-86 Euro, and 85-86 US pin outs are the same, AFAIK.

Notes:
Intake temp = Temp I
Engine temp = Temp II
Octane loop connects #10 & #22 = Temp I fault = 3° full throttle retard

Rick Carter

Ken,
Its interesting to compare the two terminologies. In the diagram you posted Pins 15 and 24 are not labeled from the site I looked at 15 is labeled train switch whatever that means and 24 is labeled EZK load.

PorKen

That's the full load/full throttle signal from the LH2.3 to the EZK generated from the MAF sensor, versus the MAP sensor in the EZF.