Misfires still after changing spider injection, fuel filter, map sensor and more

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Mar 25, 2024 | 7:47 AM

#11

Matt23661

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Joined: Mar 2024

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Quote:

Originally Posted by chem_man

As mountainmanjoe said, you really need to look at the misfire count data for each cylinder. Misfire counts are viewed as live data and not as a DTC.

Without diagnosing your problem you will simply be throwing money down the toilet.

when I run live data I don’t ever see a misfire count, only every once in awhile the trouble code appears, I’ve drove around for hours looking at live data and have not seen any info. Is there any other way I can get this to happen where I can see it on live data?

Mar 25, 2024 | 2:18 PM

#12

mountainmanjoe

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Joined: Feb 2017

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you'll have to ask tech support for your diagnostic tool.
What about the other data chem_man mentioned?

Quote:

Originally Posted by chem_man

monitor several different engine systems - Short & Long Term Fuel Trims, MAP output, Throttle Position, cylinder misfires, engine coolant temp, etc.

Or how about freeze frame data from the trouble code that gets set?

Mar 25, 2024 | 6:32 PM

#13

chem_man

CF Senior Member

Joined: May 2010

Posts: 587

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From: Maryland

As I initially posted, with the Veepeak Bluetooth OBD II dongle and the Torque Pro App, you would be able to collect data for cylinder misfire counts, LTFT, STFT, MAP output.

The question is do you want to spend $25 in order to properly diagnose this and other vehicle problems, or do you want to spend lots more money haphazardly replacing parts that are likely OK?

Good Luck!