What can I expect a Mazda dealer to tell me about my cars issues?
02-19-2017, 11:14 PM
#26
Do you have something to read engine parameters, in the same way you read codes? Check the long term fuel trim (LTFT) and short term fuel trim (STFT). If you have a vacuum leak, you'll see it immediately on a warm idle as a high (+10 or more) LTFT or STFT that's pegged over 20.
02-20-2017, 08:21 AM
#28
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Duh lol I was waiting for the fuel trims to relearn. I just never had a lean code pop from the ess reset. I reset the ess and the one that you pull the room fuse to reset, I think nvram. I just never had a lean code from that before. I figured that was the source of my idle issue since I've run into it before.
02-20-2017, 08:23 AM
#29
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Do you have something to read engine parameters, in the same way you read codes? Check the long term fuel trim (LTFT) and short term fuel trim (STFT). If you have a vacuum leak, you'll see it immediately on a warm idle as a high (+10 or more) LTFT or STFT that's pegged over 20.
Yup I use torque to monitor all the readings and log it. I haven't gone through the logs yet to check the stft and Lyft but I have the log files handy ready to comb through. I was going to let it relearn it's fuel trims and then take it driving and monitor the numbers then. It just learned how to idle this morning so I will keep y'all updated.
02-20-2017, 08:26 AM
#30
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Gutted cat shouldn't cause that code.
If you clean your plugs, use a soft bristle brush so you don't damage the iridium coating.
Dirty MAF can cause it, the screws shouldn't be an issue if your O-ring is seated properly.
Check your vacuum lines in case you accidentally knocked one off.
If you have a handheld propane torch, you can go around the connections to check for leaks.
If you clean your plugs, use a soft bristle brush so you don't damage the iridium coating.
Dirty MAF can cause it, the screws shouldn't be an issue if your O-ring is seated properly.
Check your vacuum lines in case you accidentally knocked one off.
If you have a handheld propane torch, you can go around the connections to check for leaks.
02-20-2017, 08:46 AM
#31
I have the same issue as OP. Start the car, misfires during cranking, and RPMs dropped due to flooding. I held the gas pedal to the floor to cut off fuel supply and the car started within 2 seconds. Pretty much every time I start the car.
02-20-2017, 08:49 AM
#32
Gutted cat shouldn't cause that code.
If you clean your plugs, use a soft bristle brush so you don't damage the iridium coating.
Dirty MAF can cause it, the screws shouldn't be an issue if your O-ring is seated properly.
Check your vacuum lines in case you accidentally knocked one off.
If you have a handheld propane torch, you can go around the connections to check for leaks.
If you clean your plugs, use a soft bristle brush so you don't damage the iridium coating.
Dirty MAF can cause it, the screws shouldn't be an issue if your O-ring is seated properly.
Check your vacuum lines in case you accidentally knocked one off.
If you have a handheld propane torch, you can go around the connections to check for leaks.
Anyway, otherwise you always have the water method which ScannerDanner from youtube is using. Just spray water over parts where the vacuum leak could be and you will clearly hear the water being sucked in and the engine idling rougher.
02-20-2017, 09:58 AM
#33
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I ended up pulling the fuse and doing 3-4 cycles of 10second cranks with 15-20second gaps in between cycles. Then hooked the fuse up and did the pedal to the floor for about 10 cycles. Then cranked with pedal at 1/4 travel and it struggled but started. Then I just kept it around 1.5-3k rpm till temp and smoke cleared then drove her home. It just learned how to idle this morning so we should be in the clear on the flood front for now.
I would warn with this one, that you could get a loud bang. It won't tear your face off, but it could result in something that scares you, lol.
Anyway, otherwise you always have the water method which ScannerDanner from youtube is using. Just spray water over parts where the vacuum leak could be and you will clearly hear the water being sucked in and the engine idling rougher.
Anyway, otherwise you always have the water method which ScannerDanner from youtube is using. Just spray water over parts where the vacuum leak could be and you will clearly hear the water being sucked in and the engine idling rougher.
I'm still not 100% sold on my having an intake leak, I think it may just be a code from the relearning cycle because the code has since gone away and hasn't come back yet. And I'm more used to looking for boost leaks than intake leaks so I appreciate the tip. How does the propane torch one work? Just blow the propane around potential leaks and if the revs increase or something backfires?
02-20-2017, 11:29 AM
#34
You gonna eat that?
iTrader: (1)
I ended up pulling the fuse and doing 3-4 cycles of 10second cranks with 15-20second gaps in between cycles. Then hooked the fuse up and did the pedal to the floor for about 10 cycles. Then cranked with pedal at 1/4 travel and it struggled but started. Then I just kept it around 1.5-3k rpm till temp and smoke cleared then drove her home. It just learned how to idle this morning so we should be in the clear on the flood front for now.
I'm still not 100% sold on my having an intake leak, I think it may just be a code from the relearning cycle because the code has since gone away and hasn't come back yet. And I'm more used to looking for boost leaks than intake leaks so I appreciate the tip. How does the propane torch one work? Just blow the propane around potential leaks and if the revs increase or something backfires?
I'm still not 100% sold on my having an intake leak, I think it may just be a code from the relearning cycle because the code has since gone away and hasn't come back yet. And I'm more used to looking for boost leaks than intake leaks so I appreciate the tip. How does the propane torch one work? Just blow the propane around potential leaks and if the revs increase or something backfires?
02-22-2017, 09:28 AM
#35
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