Low idle/stalling

[matt sorrentino]

I adjusted the throttle cable and tightened it a little bit. It doesn't want to stall or anything now, but it is running lean due to my exhaust setup/ 02 sensor issues. And the oil pressure seems to really be low when the truck is warmed up. I am not hearing any bad noises from the engine and it seems to run good. Should I just keep running it like this for now or is it bad to keep it running lean and with the oil pressure a bit low. This all being said the oil pressure gauge has been erratic since I got the truck, and I am not completely sure how accurate it is.

Do you have a 3 wire o2 sensor? If not I think you might need the heated sensor to make it work. Also where they put the Bung for the sensor in your system?

 

[Dahead76]

Where is the oil pressure sending unit located?

You must be registered for see images attach

Pulled this off the internet.

 

[Trstrugar]

Do you have a 3 wire o2 sensor? If not I think you might need the heated sensor to make it work. Also where they put the Bung for the sensor in your system?

It is a 3 wire sensor located underneath the passenger door. The bung is welded in about 9 inches from where the plug is. It stretches to reach about as far as the wire will allow

 

[Trstrugar]

You must be registered for see images attach

Pulled this off the internet.

Thank you I will give replacing this a try and report how it goes at least for oil pressure accuracy. Looks like I may have to remove the distributer to reach it

 

[ram1220]

On my 90 Sierra with 5.7l the sending unit is on the back of the engine by the firewall. Mine is located under the distributor plate and was a real pain to get to. The original one in my truck was a different size than the new one. So if you do buy the socket tool for the new one it won't fit the old sensor. These sensors are a common failure item on these trucks.