Check engine light on
02-21-19, 08:49 PM
#1
Driver
Thread Starter
Check engine light on
About 2 weeks ago, I got a check engine light and vsc, so I decided to head to autozone to see what was going on. Turns out that I got a P0172 System running to rich. I ordered a MAF Sensor (Duralast DL-3000) then took it home and installed it. Everything ran right, shifted better than before, better performance, and idled smoothly. Worked fine for about 300-500miles, then the check engine light and vsc came back on. What’s wrong with the car? I just replaced the MAF Sensor.
Last edited by simplecar; 02-21-19 at 10:05 PM.
02-21-19, 10:21 PM
#2
Moderator
When it comes to sensors, I would only recommend OEM.
Salim
Salim
02-21-19, 10:34 PM
#3
Driver
Thread Starter
Understandable. But this one has a lifetime warranty so I’m not worried. Plus I checked the MAF Sensor to see if it was working properly by unplugging it while the vehicle was running and it stalled, so it was doing its job.
02-22-19, 05:13 AM
#4
Working and working within proper parameters are different things. I've learned over the years that MAF's are too complex for aftermarket companies. I'm a tech and see it all the time. I've ordered up to 3 of the same MAFs until I get a good one from the parts stores. Thats more than one occasion. It would not be surprising for one from say Autozone to only last 6 months.
02-22-19, 10:16 AM
#6
You didn't say what the new code is
02-22-19, 09:20 PM
#7
Get a bluetooth OBD2 reader so you can read your own codes and also see your sensor outputs using a tablet or smartphone app. The CEL may not be the P0172 you had previously.
You need to be able to see your fuel trims to know if it is one of the A/F sensors or the MAF sensor. Both banks could be running rich even though you only got the code for bank1. If both banks are rich, it is likely the MAF, only one bank then the A/F sensor is the likely culprit.
You need to be able to see your fuel trims to know if it is one of the A/F sensors or the MAF sensor. Both banks could be running rich even though you only got the code for bank1. If both banks are rich, it is likely the MAF, only one bank then the A/F sensor is the likely culprit.
Trending Topics
02-22-19, 11:40 PM
#8
Driver
Thread Starter
Get a bluetooth OBD2 reader so you can read your own codes and also see your sensor outputs using a tablet or smartphone app. The CEL may not be the P0172 you had previously.
You need to be able to see your fuel trims to know if it is one of the A/F sensors or the MAF sensor. Both banks could be running rich even though you only got the code for bank1. If both banks are rich, it is likely the MAF, only one bank then the A/F sensor is the likely culprit.
You need to be able to see your fuel trims to know if it is one of the A/F sensors or the MAF sensor. Both banks could be running rich even though you only got the code for bank1. If both banks are rich, it is likely the MAF, only one bank then the A/F sensor is the likely culprit.
02-23-19, 05:58 AM
#9
I have this one
Use the Torque app with android. There are other apps for iOS but I have no experience with them.
Use the Torque app with android. There are other apps for iOS but I have no experience with them.
Thread
Thread Starter
Forum
Replies
Last Post
AdamProve
IS - 2nd Gen (2006-2013)
32
09-15-18 05:12 PM
b2884987
RX - 1st Gen (1999-2003)
2
07-04-16 08:26 AM