shift kit question Throwing code P1811

**knightryda01** · 03-04-2015

Looking into this shift kit fix for Throwing code P1811. I seen someone on here mention you can make your own components for a few bucks. I pm people no responses yet.... can anyone help me out. What all do I need?

**djudge1970** · 03-04-2015

If I remember right ZZP's kit was plastic spacers ( round and like 3/4 inch pvc) you put under valve body springs. One was about half inch tall (first to second maybe) the other was an inch (second to third). Nowhere as good as the other shift kit I think intense sells. I will see if I have the papers that came with it. Djudge1970

**djudge1970** · 03-04-2015

Way off on the size. It's been a long time. think I found one. Half inch wide quarter inch tall. They give you couple sizes to choose from to make first to second shift hard or harder. Djudge1970

**BillBoost37** · 03-04-2015

Best to use a Transgo kit. Ebay $44, comes with teh springs and everything you could want.

**Impala131** · 03-04-2015

Originally Posted by BillBoost37

Best to use a Transgo kit. Ebay $44, comes with teh springs and everything you could want.

I went this route not long ago on my 04 Impala, completely removed the P1811 code and the shifting is much nicer. I was looking for a cheaper option as well, but it's well worth the money invested.

**offroad** · 03-17-2015

new to site, hello all. just got my girl friend an 05 gran prix (3800). no check engine light but pulled codes anyway. i think the light has been disabled, question is, what exactly is the p1811 code? any help would be great.

**Fivefingerdeathpunch** · 03-17-2015

Most trans code never set a light, they just sometimes remain in the history.

1811 is a max adapt shift/long shift code. Normally the shift kit reduces the time it takes to shift and stops the code from coming up.