Comments on: Proper Air-Fuel Ratio (When Idling, Starting, Accelerating, and Other Conditions)

By: Earl Hunt

Earl Hunt — Wed, 20 Jul 2022 14:48:32 +0000

yesterday I fixed the transmission on my 2000 Tahoe, I replaced the air filter, it was so plugged that the engine would not allow the transmission to shift properly, now the engine runs all the way up to 5800rpm and shifts firmly at all shift points. I feel bad telling anyone this because it was the trust of the air filter guage that fooled me to thinking the filter was fine, don’t trust the guage…. service it regularly, it’s cheap.

By: dawuud. R.

dawuud. R. — Tue, 24 May 2022 08:24:02 +0000

well done as I am motor vehicle lecturer, I must say your document was easy to understand and very clearly presented

By: robert

robert — Mon, 10 Jan 2022 04:24:09 +0000

Sometimes when I use gasoline in Mexico, the DIC code generated is P0404. When I run high quality gasoline like Top Tier, the check engine light is not illuminated.

By: MarKuZ JENKINS

MarKuZ JENKINS — Sat, 12 Jun 2021 16:11:27 +0000

The is/was really great reading… Thank you.

By: John Whalen

John Whalen — Mon, 31 May 2021 02:13:21 +0000

Vacuum leaks are a very common cause of improper air/fuel ratio.

When a modern fuel injected vehicle is in deaccelerating the injectors are completely shut off. No fuel is entering the engine. Therefore the air/fuel ratio is not a ratio at all, it’s just air.

By: Ghulam Janjua

Ghulam Janjua — Sat, 06 Mar 2021 18:24:22 +0000

In reply to Ravali. Great detail of air fuel mixture for which we Thankyou.

By: Sean

Sean — Fri, 18 Dec 2020 17:04:13 +0000

In reply to Mike Dinora. Happy to hear it helped, Mike!

By: Mike Dinora

Mike Dinora — Tue, 15 Dec 2020 11:54:18 +0000

Thank you, well done, all the information I needed to troubleshoot my fuel injection

By: Ravali

Ravali — Mon, 09 Dec 2019 04:10:50 +0000

Thank you! Wonderfully explained so that I can easily make my students understand the concept.