94 Lifted Silverado 6.0/4L80e swap Build

[HPICamaroSS]

Took the truck to the sand dunes over Memorial weekend.....http://www.youtube.com/watch?v=_UTr3...youtu.be....It did SOOO much better than my old tbi motor. I have only had a few problems so far. When I filled the truck up the fuel guage got stuck at full. So i dropped the tank and found out that the walbro 255 that i put in along with the conversion harness caused the float to get stuck at the top. a few zip ties solved that problem. If you go with the same fuel setup that I did, make sure u zip tie that extra long harness to the lines inside the tank. In the dunes i know my driveshaft was hitting my transfercase when the suspension would preload, so I am going to have it shortened 2". Called my local driveline shop and they said they would do it for 60 bucks. Another problem is my speedo not working in 4wd. Im guessing its the vss?

[HPICamaroSS]

Hey everyone, I need some help getting my tach working the right way. I have nelsons tune and harness, and I have their tach wire hooked up to my white wire behind the glove box. I have my stock cluster, and a autometer tach and they both work, BUT they both read really low. At idle its at 0RPMs, and when I floor it the highest it will go is about 1500RPMS and I know I am way higher than that.

I called Nelson a few days ago and ray said try switching the autometer to the "4cyl pulse mode". So I did that, and that made the autometer tach read really high. It is reading at 1500 RPMS at idle and the needle is shakey. The stock cluster did not change: It still reads low.

IDEAS?


On another note, having my driveshaft shortened 2" tomorrow :-)

[Wagonbacker9]

Sounds to me like you're trying to use vehicle speed for tach signal.

[bobbylog]

Try this.http://www.lt1swap.com/lsx_tach.htm
Please give a feedback if it work. I will need to wire mine to in the future.

[HPICamaroSS]

Try this.http://www.lt1swap.com/lsx_tach.htm
Please give a feedback if it work. I will need to wire mine to in the future.

I am sending my ecm back into Nelson and they are going to try and recalibrate it first. I will let you guys know how it works

[HPICamaroSS]

Sounds to me like you're trying to use vehicle speed for tach signal.

Im pretty sure the tach wire (on the obs) is the white wire. Unless I have the wrong white wire