When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have 98 neon sohc and I changed the rad today and now the car is throwing code 1899, why would that be?
P1899 Park/Neutral Position Switch Stuck In Park or In Gear
Most likely, you need to check the wires/connector to the lockout switch as you likely bumped it while replacing the radiator. That or replace the switch.