View Single Post
Old 08-27-2015, 06:52 PM   #13
dwmitchell61
Registered User
 
Join Date: Jul 2015
Location: Benton City, WA
Posts: 37
Re: 1988 Canadian GMC C1500 305 TBI w/TH400HD going into 1973 C20 Custom Crew Cab

Quote:
Originally Posted by Katrina/10 View Post
The e8094 is a good inline fuel pump for TBI. I could not tell any difference in idle speed using the park/neutral wire, so I didn't hook it up.
Thanks, Gary... That's good info to know.

I have an article from elsewhere in the Internet that says the VSS signal is optional also. But elsewhere I found that not using it may cause rough deceleration and stumbling at stoplights. I have the wire in the harness, sio I can connect it later if there are problems.

If there are issues then I will have to do the following:
1. Open the tail shaft on the transmission
2. Remove the electronic speed sensor reluctor and pickup.
3. Install the right speedometer gears
4. Then put an external speed sensor between the speedometer cable and the transmission

That being said, I wonder if the speedo gears from the old TH350 will work in the TH400?

Dave
dwmitchell61 is offline   Reply With Quote