Reversed Mass Air Flow Sensor

[xrac]

We ran into an interesting repair yesterday. Our shop is located about one block from a brand new VA Clinc that opened here in December. An older verteran who had never been to our shop beforfe came in with an Isuzu Trooper that would barely pull itself into the shop. He asked us to find out what was wrong. We found for starters the right side catalytic converter completely stopped up. When we replaced it the vehicle would run with some power but was still missing and had a check engine soon light on. The technician started checking it out further and found that the vehicle had what looked to be a fairly new Mass Air Flow sensor. There was one problem with it however. It was installed backwards? Think that might have had something to do with the CEL and running problem? We reinstall the MAF correctly, put one new spark plug in cylinder #5, and dumped a can of Sea Foam in the gas tank. The Trooper started running just fine. Reckon the reversed MAF and the dummy who installed it had anything to do with causing a $500+ catalytic converter replacement? I can't say for sure because I know nothing about the vehicle's history but you know what I suspect.

[Gonzo]

Can't say I've run across a backwards MAF. That's a new one. There's only a few of them out there that you could even possibly install backwards, and most of those have an arrow showing the direction to install it correctly.

 

I give it an A for creativity, and an S for stupid. LOL thanks for sharing Frank

[xrac]

Can't say I've run across a backwards MAF. That's a new one. There's only a few of them out there that you could even possibly install backwards, and most of those have an arrow showing the direction to install it correctly.

 

I give it an A for creativity, and an S for stupid. LOL thanks for sharing Frank

 

This one had an arrow.

[Joe Marconi]

I have never seen that before.

 

My uncle was an engineer for Gruman Aircraft. He worked on air craft parts. He told me years back that a part should always be engineered so it could not be put on backwards or upiside down. We all know that is not so in our feild. How many times have your seen DIYer put on brake pads backwards with the friction side up against the brake rotor?

[xrac]

I have never seen that before.

 

My uncle was an engineer for Gruman Aircraft. He designed air craft parts. He told me years back that a part should always be engineered so it could not be put on backwards or upiside down. We all know that is not so in our feild. How many times have your seen DIYer put on brake pads backwards with the metal backing of the pad up against the brake rotor?

 

About four times in the thirteen years I have been in this business.

[FxsX24]

About four times in the thirteen years I have been in this business.

are you kidding me?

 

how dumb can a person be?

 

and maybe on the MAF they thought the arrow pointed to the front of the truck.