Blance rate fuel injectors

Hello,

It is a complicated formula that your vehicle's Power-train Control Module (PCM) uses to calculate the exact time to keep your vehicle's fuel injectors open, but it looks okay. The one value that I see on there that is out of whack is the Air:Fuel Ratio. Usually your vehicle is trying to keep the Air:Fuel ratio as close to stoichmetric as usual, which is 14.7:1. It looks like your PCM is commanding 1.7:1 which is so rich it would completely flood your engine and not make run. I could be seeing things though. Is your vehicle running fine?

Thanks,
Alex
2CarPros

Yes, no smell from exhaust a little hesitation. no check engine, good fuel pressure.

Here is a video of my o2 sensors:

This looks good but I need to ask have you serviced your throttle bore? We should check fuel pressure as well it could be a weak pump. here are two guides to help us fix it:

https://www.2carpros.com/articles/engine-hesitates

and

https://www.2carpros.com/articles/throttle-actuator-service

Please run down these guides and report back.

It has new pump and throttle body, hesitation was fixed. I had loose bolts on A/C compressor. However Air:Fuel Ratio is showing 1.7:1 that's why I asked about 02 sensor. The static pressure is holding no more then 5psi in 1 minute and it is holding.

Glad you got it fixed, something must be off on the monitoring because at 7 to 1 it would have tons of black smoke out the exhaust pipe. You can try a new primary oxygen sensor but if it runs good you are good to go.

Here is a guide to walk you through the replacement and diagrams below you show you how on your car:

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor


Check out the diagrams (below). Please let us know what you find.

Thank you all.

Use 2CarPros anytime, we are here to help. Please tell a friend.