From what I understand, my 2000 Camry does not have a MAF Sensor, but has a MAP sensor.
Is the MAP Sensor located on the airbox? My friend asked me to bring it over tomorrow and he will clean the MAP Sensor.
I also got a P0172 Fuel System Too Rich (Bank !)
P106 : Manifold Absolute Pressure/Baro Sensor Range/Performance
P0130 : O2 Circuit ( Bank 1, Sensor 1)
P0133 : 02 Circuit Slow Response (Bank 1, Sensor 1)
Should I go ahead and change the bank 1 02 Sensor?
Is the Denso 234-4626 Upstream Oxygen Sensor an acceptable replacement? OEM parts are not in my price range.
My problems all started with a check engine light, a week prior to this scan that says I need to replace the EGR Valve. I bought one and when my neighbor was going to replace it. When He went to remove the old EGR, he discovered that one the vacuum lines coming out of the EGR Valve was dry rotted and broken.
He replaced and cleared the replace the EGR Valve code. Then the check engine light cane on again and that's when I went to AutoZone and got the codes regarding the MAF and O2 sensor's
All signs point to a vacuum leak. And since you found one rotten line, there likely will be more.
You really need to follow logical troubleshooting steps, or you'll end up replacing all the expensive sensors and fix nothing.
Make sure that you're dealing with causes and not symptoms, before "firing the parts cannon." For example: The P0172 can be caused by a restricted air flow. Check your engine air filter. If it's dirty, replace it. Also, check the intake UNDER the air box. About six years ago, I found that the air intake (on my 08 Camry) below the box was full of leaves and sticks and other assorted debris. Look for that, and clear any debris BELOW the airbox, that leads to the airbox, as well.
The advice, earlier in the thread, to clean the MAP is excellent. So, too, you should clean the throttle body. See Scotty's video on how to do that. Then clear the codes, drive it a bit, first (the idle will reset to "new" and go through a relearn procedure.
Think about it: Restricted air flow might produce many of these codes. So, as is often the case on this site, the advice is "do the simple and cheap things first."
https://knowhow.napaonline.com/guide-map-sensor-cleaning/
AutoZone Scan Says To Replace MAF
No it doesn't. Scans never say "replace X".
what exactly are the codes you got?
MMJoe is right about the meaning of codes. They are clues as to where to begin to investigate. Codes are almost never determinative. They are suggestive. Think about it this way: Let's say your doctor affirms that you have a cough. That's not a diagnosis. TB, strep, allergies, COVID, a cold, exposure to a toxic chemical in the air could cause this. The doctor probes, takes a samples, sends a swab to a lab, and then, makes a diagnosis. The Code is like the cough. It's most often a symptom. Or with multiple codes, multiple symptoms, the list of codes is often, but not always, related to the same event or phenomenon.
MMJoe, I understand (at the top of the post) that the codes were listed: P0172, P0106, P0130, P0133. Since at least three of these related to air/fuel mix issues, my hypothesis is to inspect and inexpensively clean components of that system.
Okay, thanks.
You could always try cleaning the MAP sensor (located on the intake manifold) first to see if it fixes the problem, then continue from there. Yes there is a MAF sensor, $54.99 and a MAP sensor, 35.49, both at AutoZone. Clean both sensors before replacing them.
is that for OEM?
I read on a message board, that said there is not a heating element on the MAP Sensor, so there is nothing to clean? I do nit know anything about it.
I appreciate your prompt response. My friend said he will clean the Map Sensor for me tomorrow.
I went to the Toyota dealership today. They told me my car doesn't have a MAF Sensor.
The Fix Finder Report says the most likely solution is to replace mass air flow sensor.
Then the diagnostic trouble codes;
P0172
secondary DTC's
P0106
P0130
P0133