The Shop Truck

[76zimmer]

Nice catch on the street sign!
also Clydes is the best burger joint in da UP!
As mentioned, this tuning is outer space for me, but if I keep reading it long enough maybe this old dog can learn something!

 

[folkenheath]

That's kind of crazy, all my pressure and temp sensors are from almost 10 years ago now, all Holley.

I had a IAC vibrate loose, I used loctite on it after that.

The only sensor I have had go bad was an O2 sensor, but that was pretty much right away because the self learning added 100% fuel at low RPM and flooded it before I learned to limit/correct that.

Now that I said that they will probably start failing one after the other.

 

[r3dd0g]

Well, I just hooked the sensor back up to do some testing and it's working fine. I reinstalled it and everything looks good now. I'm wondering if I got some water in the connector when we washed the engine bay in Michigan and that was causing the bad reading.

 

[r3dd0g]

I did find out the specs on my torque converter, it's a multidisk that's designed to be used at WOT so I can add that to my tune.

 

[r3dd0g]

Unfortunately we've had too much going on, plus I didn't get all the parts I needed ordered. There's no way we're going to make the 19th. The next one will the week after on the 25th, so hopefully we're good for that one.

 

[r3dd0g]

I finally got a chance to do a little work on the truck this afternoon. I swapped the even and odd injectors, swapped #6 and #8 EGT probes, and swapped #6 and #4 spark plugs.
While I didn't get the huge dip in EGT temps on #5 like I saw when the injector was in #6, it was the coldest hole when under heavy load. It was hardly noticeable at all with the big pulley in, I had to put the smaller one on to get it to show up at all.

The white line is #5, #6 is one of the pink lines. By the end of the pull it's the lowest temp, but the entire spread from hottest to coldest is only 100°F. If you look at the graph from before I swapped injectors around #6 was 300°F cooler at the worst point.
I have a cheapy fuel injector cleaner rig, I may pump some washer fluid through all of these and just run them at the next test and tune. If the issue comes back, I'll stop, but I need to get out and test the transmission, fuel injectors and new driveshaft (once I get it).