OD light was flashing, truck was shifting hard so i replaced the tach sensor cleared the codes and it came on again. I adjusted the TPS cleared the codes and the light came back.
Just received my new TPS, set it with a volt meter, all worked great for about 10 miles or so and blink blink blink...

Tomorrow I plan to see if the TPS moved or came out of adjustment will look at the electrical connections on the transmission and spay some cleaner on the connectors...

What is my next step???

 

Why not check for a code set in memory....... you had the OD light flashing right!!!!!!

Troublcodes.net Trouble Codes OBD & OBD2 Trouble Codes and Technical info & Tool Store. By BAT Auto Technical

 

Ill look into the codes tomorrow,

Thanks for the link!

 

Dont think this is for my 1989, My connector only has two wires with the third being the single wire.

 

my bad, The pics on the page were the back of the connector.
Got my codes now I just to figure them out.

 

First code = 23 TPS Too High
Second Code = 62 Excessive converter clutch slippage
Adjusted the TPS down
Pulled the cables to clear the code went for a drive

Again with the light,
First Code = 23 TPS Too high
Second Code = 94 Transmission TCC circuit/solenoid problem

Going out to set the TPS again.

The TPS is new, the Tach Sensor is also new....

Little help please....