Since Karl is allowed to cross post in the off road forum and the turbo forum, I will cross post my EFI info here too.
Time to install the 882C ECU!
I made my own crank trigger setup using a Volvo VR sensor, a 5” 3601 trigger wheel (TW), and a Fisher crank damper pulley. The pulley has a clutch pack inside. Initially I used roll pins and epoxy to attach the TW to the pulley. This didn’t hold. I was forced to drill and tap it for machine screws. I used the original three pin holes, and drilled another three for six equal spaced holes. I used counter sunk #8-32 cap screws. I was only able to tap three threads into the pulley before hitting the clutch disc lining. I went a bit deep on one hole to find the limit. Here is the finished product.
I was unsure how the VR sensor would work pointing the sensor at the edge of the tooth on an angle. I chamfered the tooth edge as shown in the picture above to provide more metal to sense. I bench tested the ECU with just the VR sensor hooked up. The ECU has a monitor screen that shows tooth count, and RPM. I was still running the car on the old haltech and distributor. I tested the reading and it was all over the place and unstable. I ended up having to bend my (very) rigid VR mount and bring the sensor very close to the teeth. With correct polarity on the sensor and a very close air gap it was reading a solid 35 all the time (That is 36 minus one). Good deal.
Now that I was confident I would have a working crank trigger I proceeded to remove the Gene Berg Haltech F9A wiring loom which was on the baja to start with. Here it is spread out on the garage floor.
Here are the two main flying lead harnesses from Redline. They offer fully terminated ready to use wiring harnesses but I am going to roll my own. The Stage 2 Redline ECU has AMP connectors. The sensor and inputs have one connector, and the high current drivers for injectors, coils, and GPOs are on the opposite end of the ECU. I checked all the pin numbers compared to the wiring diagrams and verified everything was ready to go.
These are the flying lead wiring bundles. The output harness on the left, and the input harness on the right. I have separated and tagged each run here.
Tech Flex expandable braided sleeve loom material and some wiring tools:
The ECU is mounted to the bottom of the aluminum plate, and my fuse blocks and relays are on top for easy access.
Here is the harness with the wire runs cut to the correct lengths and routed out to reach their respective sensors. It is important to install the outer sleeve material progressively from large diameter end and work down in size. The same with the heatshrink tubing.
http://myweb.cableone.net/stevearndt/efi/efi106.JPG
Label detailing.
Finished input/sensor harness:
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I made one wire harness for all the sensors as shown in the previous post. The injectors and ignition coils also both have their own modular runs. I used a 5-pin round weather pack connector as shown. This makes future modifications easier.
The loom for the ignition coils is pretty much just like the injector loom. I reversed the genders for the 5 pin connectors between the two harnesses to prevent any mixups. Shown are four Redline IGN1 coils, and also a set of GSXR600 COPs.
Cylinders #1 and #2 coils:
And #3 and $4.
I’m using CB Performance 8.2mm magna spark wires for their distributor setup until I build a set of custom wires.
I have just started the tuning process. The first order of business was verifying the output from my Techedge wide band. A trick I read on another forum is to program the WB linear output to have equal voltage for rich and lean as a test. I’m using a 0-1 volt linear out, and set both ends of the lamda vs voltage curve to be 0.5. Then I used my volt meter to measure the actual voltage output of the WBO2 linear out. It was spot on 0.50 volts. The WB output was then checked as an input in the Redline GUI of the ECU to confirm is was reading the same value. Okay to go.
The Tech edge analog display I have is over 1 full AFR number off from what the linear output reads. I am glad I checked this, I know to ignore the gauge and go by what the ECU logs. I then set the WB output back to the factory lamda vs voltage curve, and entered these same values into the ECU O2/AFR setup. It is now ready to go now with all sensors reporting for duty and time to test fire it. Redline provides the ECU with most basic settings entered but these all need to be checked. I am starting off with fuel only control and retaining the distributor. When the fuel is dialed in okay, then I will switch to the ignition control.
It fired up first time I hit the key!