Lately I've had error codes 17, 18 and 35. This can mean that the FSD unit has to be replaced. I did. TWICE... But still I had the error codes from time to time. Next step was to change the Optosensor inside the diesel pump...
May 3rd. 2002
Here you see the FSD cooler with FSD and extension harness installed. I've made some simple brackets to lift the whole unit off the hot engine...
Here's the bad wolf. As you see, the FSD unit is removed from the pump. I did this without removing anything exept the "DIESEL POWER" cover. I killed a T-15, welded the tip to a long bar, and removed the screws in less than 15 minutes...
Remove the screws as shown. Also remember to remove a screw on the securing bracket between the Turbo and the inlet tube.
Remove the segering thet holds the Optosensor connector, and the 6 screws (T-27) that holds the cover.
The cover is removed, and you can see the Optosensor fastened with a T-40 screw. Here I have drained the pump from diesel.
Draw a line beside the Optosensor with a sharp knife before removing it. This is to make it easier to install the new one at the correct position. Here you also see the stock made line.
Remember to install the O-ring on the new Optosensor connector. I forgot this, and had to dis assemble the pump again...
Here you see the cover back on again, and you can see the different connectors. The radio noise eliminator that can cause problems with Optosensor and FSD unit connects between the harness and the Optosensor. I added some Vaseline into the connectors, and pressed it together...
AND THEN, FINALLY I STARTED THE BEAST!
I'm going for a 250mile trip with a 9,5metres caravan tomorrow, so we'll soon know if this worked...
May 4th. 2002
I'm back from the 250mile trip in Norwegian mountains, REAL mountain climbing. Passed Vinje in Telemark, where the Olympic fire has been put into fire three times, and where Sondre Nordheim started the modern skisport...
Well, enough history... The beast worked well, and it seems like that the Optosensor was to blaim for code 17, 18 and 35. Price for tis sensor, is about US$ 350 here in Norway. Labour, 1 hour and 30 minutes (I'd do it in 15 minutes today...).
May 6th. 2002
I just HAD to replace the OLD FSD driver yesterday.
The beast has worked well to day. Not too much driving, about 20miles, but NO failures. I'm just wondering if I placed the Optosensor a little differrent than the previous one. The beast is, -what'll I say -frisky compared to what it was. Of course, it's a bit quicker than the stock models are, with BD-RACE chip and #9 resistor in the FSD driver and a tranny controller. Believe there are about 265HP right now. I have a couple other things to do to highen the power up to a 280-290HP. Some day I'll just do it...
December 16th. 2003
I've been using the OLD FSD since May 6th. 2002.
Now I've had several stalls during driving. I've exchanged to one of the new ones that I always carry in the truck now. Let's see if the stall's seize...