2000 toyota echo. heat coming in the floor. Acceleration is slow. Ive replaced the spark plugs and one coil a month ago got better but still sluggish when accelerating. I think clean or replace fuel inject
Also a plug going to ac keeps burning off? Is this related to the engine getting too hot? And exhaust making a little noise by the engine. Is this all caused from the possible fuel injectors being clogged( if I'm guessing correctly) thanks for reading my question and helping
That thing is 25 years old and well past its expected life span. Low-hanging fruit would be filters and fuel pressure.You're probably getting heat through the floor from the catalytic converter. Check if the heat shield is intact. If you have a connector to your AC burning out it's probably pulling too much current. Don't guess, perform a full diagnostic scan for codes and live data.
For future reference, please note that the subject line of your post is intended for a short description of your car problem, not the details which belong in the body of your post. (Title edited.) Also note that per the forum rules only one question or problem per topic please. Thank you.
@chucktobias I thought this all related to the same issue. Trying to give as much info as possible incase they were related. And I didn't know as I'd been on this site for 2 seconds. Just learning
@beckyd No problem on issues using the site, just making you aware so as not to repeat them. Some of your car may well be related, for example if your catalyst is clogged that would make for poor acceleration and might heat up the floor. However that thing is old enough that it would be no surprise if there are multiple issues. As I said I'd start with a full diagnostic scan and also check for the converter being clogged.
You might also want to check if your catalytic converter is clogged.
@chucktobias I did perform full diagnosis last month. And thought I fixed the issue. Here r the codes...P0301, P0420, P0441, P0446, P0300, I can send a photo if I figure out how. But some codes are pending some are stored. I replaced one of the coil packs and all the spark plugs and did a catalytic cleaning. I'm thinking of cleaning or replacing the fuel injectors. Thanks for the help and advice
@chucktobias I also changed the oil and filters
@chucktobias I ran a gallon of lacquer thinner thru the fuel system in July. Do u know of a better solution? This lil echo is a life saver. Don't want to give up on it 🙂 Thanks again for any help and consideration
@beckyd Lacquer thinner will not fix a clogged converter. (The only way to fix that problem is replacement.) Some say the thinner can clean up a converter that is just on the edge of not being efficient enough to pass OBD diags. However the stuff is hard on your fuel system, particularly rubber hoses and the fuel pump. Hopefully you didn't leave the stuff in there too long. Converter back pressure can be tested with a suitable gauge and you really need that diagnostic scan for live data as well as codes.
I can send a photo if I figure out how
There are instructions for photos in the topic posted near the top of the main page in the topic "READ THIS FIRST - Forum Guide". (In short save photos to a file sharing site and post the link here.)
Here r the codes...P0301, P0420, P0441, P0446, P0300,
The P0300 and P0301 codes are misfires, P0441 and P0446 are evap system issues (not unusual on older cars). P0420 is catalyst inefficiency. There are several possible causes, but if your converter is clogged that would be one of them. There are many possible causes for misfires. On something that old vacuum leaks would be high on the list.
Some basic data items like fuel trims, MAF sensor and O2 sensor outputs would be very helpful.
Although the most direct way to test for a clogged catalytic converter is with a back pressure gauge there are other ways as in the links below:
https://www.carparts.com/blog/how-to-tell-if-the-catalytic-converter-is-clogged/
https://www.autozone.com/diy/catalytic-converter/symptoms-of-a-clogged-catalytic-converter
https://www.youtube.com/watch?v=tLos00sPhr0
This lil echo is a life saver. Don't want to give up on it
I can understand that. I drive beaters even older than yours. Part of driving old clunkers economically though is knowing when to let go, especially if you have to pay a mechanic every time something goes wrong. Those who do their own wrenching can usually squeeze more life out of such vehicles without breaking the bank. (Of course we don't know if you are at that point yet with your Echo.)
@chucktobias I do most of the work myself. Probably why it means more to me. What I don't know I try to figure it out. Most mechanics don't care and as Scotty says I don't trust a lot of them. The codes I listed were prior to the work I did. So the cat is next. Wondering about the Bernies 505? Maybe worth trying? Thanks again.
@beckyd ATS 505 won't help a clogged catalytic converter, though the fuel system treatment may be of some benefit if fuel injectors are clogged. I really think though you need to take a look at the data and test the possibility of a clogged converter so you have a better idea of what you're dealing with before throwing anything more at these problems.