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Eric;
I’m looking through my Honda Civic LX ’03 service manual and I see things that I have questions about in regard to solving EVAP problems – specifically P1457.
The service manuals assume that one is a trained service tech and the Haynes book(s) aren’t the best for serious diagnostics. (I got two for 2 different cars and when it comes to it, I have to go the service manuals for the real scoop. Don’t get me wrong! For those of us who haven’t gone to school for this, the Haynes books are mostly good for showing how to do stuff. In this case – no.)
P.S. Eric, I think you missed your calling as a teacher.
P.P.S. BUT I’m glad to see that you’re using your art training and “synergizing” it with your automotive training to make these videos. This is one of those times when I wish I could see in the papers that you bought a million dollar home and a private jet – I’d cheer you on man!
Hell yeah, Eric adds value to society!
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I would also like an EVAP video… other than just blindly replacing the gas cap I have no idea how to diagnose or repair EVAP problems.
Guess they’ll teach me that stuff in advanced engine performance next semester.
That’s a great suggestion. Thing is you really can’t do evap diagnosis without a smoke machine. I don’t have a smoke machine yet. Once I get one, I plan to make videos, some about evap codes. Honestly, you’d also need the service manual or at least the service procedure for a particular code as well. The reason is that you also need to know how to test the different components associated with the particular evap code that you have on your particular vehicle. Unfortunately evap systems are not universal, for that reason it makes teaching those diagnostics difficult.
Thanks again for the suggestion and the comments on my work. I really appreciate them both.
Smoke machine?
Oh, no no no – I wasn’t thinking along the lines of an ASE training manual type of thing. I was thinking along the lines of:
[i]
First folks, let’s look at the lines. Let’s look for obvious leaks and breaks in the lines.OK, Let’s test the Purge valve. Take your multimeter, jumper wires and vacuum pump ….
Or Let’s test the Bypass solenoid valve. Take your vacuum pump, jumper wires and multimeter …
And let’s test the Canister Vent Shut valve. Take your multimeter, jumper wires and vacuum pump…If it’s still throwing a code, then you need a smoke machine or take it to a tech….
Stay Dirty.
[/i]That’s what I’m talking about.
Things that we can do. I know you can do it! I’ve seen you fix a transmission with a paper clip, croissant and a piece of bubble gum! (OK I exaggerate.)
You get what I mean ….Sorry if hero worship scares you. I’ll tone it down.
well the obvious is check for bad hoses in the evap system. you dont need a smoke machine, although it makes it easier. you can run compressed air through the system if you have to see what you can find, by listening. Or you can use incense or cigarette smoke or something to find the leak. these are crude methods, but seems like something eric would do lol.
[quote=”DaveNewbie” post=64136]Smoke machine?
Oh, no no no – I wasn’t thinking along the lines of an ASE training manual type of thing. I was thinking along the lines of:
[i]
First folks, let’s look at the lines. Let’s look for obvious leaks and breaks in the lines.OK, Let’s test the Purge valve. Take your multimeter, jumper wires and vacuum pump ….
Or Let’s test the Bypass solenoid valve. Take your vacuum pump, jumper wires and multimeter …
And let’s test the Canister Vent Shut valve. Take your multimeter, jumper wires and vacuum pump…If it’s still throwing a code, then you need a smoke machine or take it to a tech….
Stay Dirty.
[/i]That’s what I’m talking about.
Things that we can do. I know you can do it! I’ve seen you fix a transmission with a paper clip, croissant and a piece of bubble gum! (OK I exaggerate.)
You get what I mean ….Sorry if hero worship scares you. I’ll tone it down.[/quote]
You really need to start with the smoke machine. In fact, that’s how you test most of the components you mentioned. Also, you really can’t generalize when it comes to EVAP stuff because much of it is vehicle specific. What works for diagnosis on one vehicle won’t work for another. I have had plans for some time to do more videos on diagnostics like that, in fact I was going to write articles for them similar to what I’ve done with other videos, but there is other ground that I’d like to cover first.
I’ll get to it, it just might take me a little bit.
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