hey guys ive got a bad water temp sensor i unplugged it cus it was makin the car run like crap i need to replace it but my question would that give me problems with startin the car?i know its runnin rich cus of it,ive heard a few ppl say it could cause it to but figured this is the best place to ask.. thanks for the help guys

 

it takes a few tryes,i dont think its the fuel pump it never stalls no rough idle it just gives me problems startin and after that runs prefect,besides running rich

 

why not just replace the sensor, they are cheap as hell. Yes they can screw up the fuel trims because the pcm doesnt know the temp of the engine there it thinks that it isnt warming up so it throws more fuel in the engine

 

battery just died n money so jst doin a lil work while im bored

 

the ecu reads that coolant temp to tell how much fuel to dump. Some cars it is more crucial in than others. Nissans and Hondas will run like balls if that sensor is bad, if they run at all.

 

agreed. there's a different idle set for each temp range. if the car always thinks it's zero or "disconnected" it's going to always try and idle at some range, and dump a ton of fuel.

as far as the other issue, you need to stop being a cheapo and buy a new battery, or else you'll end up with a dead alternator soon too.