Check engine light turns on with code P0144

Yeah. I would call the state and contest that. The smog referee is there to prevent situations like this, but they technically need to be involved at the beginning where they fail your vehicle then you try to fix it and after $650.00 you can be exempt. Most states have something like this but I would call and tell them that you had a light and so you knew you were going to fail so you spent this money trying to fix it before getting tested. They normally waive that requirement.

I did read them. They all make sense, and the testing is sound. The problem that I have been saying all along is they can perform the tests but if they are not understanding the results then they are going to be recommending all sorts of different parts.

This is typical when the tech working on the vehicle is just performing the test but does not understand why they are performing the test.

Unfortunately, what they are saying is there is a code for an evap leak, but they are doing all this testing and they find no leak. So, they recommend a part anyway. If they found no leak, then why are they telling you to replace a part? They can't answer that because they are just guessing at what it must be, and they have been wrong up until this point.

So, the tech notes are great to have but unfortunately, they do not lead us to what it could be because I suspect that they missed something in these tests. They are not going to write that down because they don't know what they missed.

For example, they smoke tested the system and found no smoke but didn't look in the crank case to see if the purge was leaking. All we know is they found no leaks so we assume they looked everywhere they should have but they didn't. We know this was the exact case here because they already guessed at the purge and that was not it.

Yep. I think we covered that prior. You are correct. This is part of the fuel pump assembly but that is why we need to find out if it was part of what they replaced as they can get a pump that you swap it over.

Those are good notes. That shows that the pressure sensor that I mentioned earlier was replaced.

Also, that he is monitoring the pressure as I said he needed to and finding that it is dropping. This means the code is accurate and that the pressure is dropping and there is in fact a leak.

If they narrowed it down to a filler neck then that is great but again, all these other parts were not needed.

I hope they gave you your money back.

As for the part, I would start contacting salvage yards because I am sure you will be able to find one that way.

Haha. That is great news. Best outcome we could have had at this point.

So glad it worked out for you. Thanks for the update.