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The "MAF" Tab will be back once its features are fully implemented. What you where seeing was more of a development tool than a feature, this is why I temporarily removed it. Its current purpose is to allow real-time calibration of the prototype MAF I am working with while it is on the air-flow bench. In the near future, it could also (in theory) be used to calibrate any MAF sensor of your choosing provided you have a WBO2 sensor. However, this is an advanced feature that must be used with caution because it will directly effect fuel mixture. I am working on a formal manual for the OBD+ system that will describe this feature and relevant cautions in detail. However, my expectation is most customers will choose to use one of the predefined MAF sensors I will make available.
- Joe
Hi Joe,
When do you project the availability of a MAF option and can it be calibrated to a 2.8L stroker engine, probably about 15-20% air flow running 112 octane fuel?
Thank you,
Tom
Hi Joe,
When do you project the availability of a MAF option and can it be calibrated to a 2.8L stroker engine, probably about 15-20% air flow running 112 octane fuel?
Thank you,
Tom
Hi Tom,
I wish I had a definitive answer for you. Optimistically, I will have MAF working on the 944 NA before the end of the year and Turbo 944 shortly thereafter. For your 2.8L stoker, are you running the engine now with a stock DME/AFM and custom performance chip?
I wish I had a definitive answer for you. Optimistically, I will have MAF working on the 944 NA before the end of the year and Turbo 944 shortly thereafter. For your 2.8L stoker, are you running the engine now with a stock DME/AFM and custom performance chip?
Regards,
Joe
Hi Joe,
The 2.8L stroker is installed but not running. I need to install the intake manifold, etc. I plan to use the Roque NA Tune and Joshua supplied me a 2.8L stroker performance chip with 7000 rpm rev limiter. Michael Mount builds cylinder heads with valve springs that can withstand 7000rpm.
Hi Joe,
The 2.8L stroker is installed but not running. I need to install the intake manifold, etc. I plan to use the Roque NA Tune and Joshua supplied me a 2.8L stroker performance chip with 7000 rpm rev limiter. Michael Mount builds cylinder heads with valve springs that can withstand 7000rpm.
Is the NA Tune Josh sent you for his MAF sensor or the factory AFM?
Joe sent me a video of the NBO2 plot from his car and I noticed the voltage range was different than what I was seeing on my car. Joe's was roughly 0.03V to 0.67V at idle while mine was 0.4V to 0.59V. According to the maintenance history I believe my O2 sensor was original. I replaced the sensor and now I get a voltage swing similar to Joe's and in 3 cold starts it did not get stuck on lean. Thanks to Joe and OBD for helping me solve (fingers crossed) the problem.
Hi Michael,
Did the Replacment NBO2 sensor continue to correct the issue?
Yes. I drove about 20 miles and it ran good and the voltage plot was a nice sinusoidal pattern. I'll continue to watch it, I haven't gotten out much lately.
Yes. I drove about 20 miles and it ran good and the voltage plot was a nice sinusoidal pattern. I'll continue to watch it, I haven't gotten out much lately.
Any chance I could get your old NBO2 sensor? I would like to profile it and see if I can make FocusOBD software differentiate between a good and bad sensor.
I may be replacing my O2 sensor shortly as I developed an idle surge recently. will be chasing it. If i replace will happily send you my original sensor.
I received my solid-state DME and cooling fan relay the other day and installed them this morning. Took the car out for a spin to make sure that everything is working properly - and came to the realization that my original relay had failed on the high speed circuit! I don't think it's been working at all during the 2 years I've had the car.
My car never really got above the halfway mark - but now it's running slightly cooler and the A/C works much better when sitting in traffic.
Thanks for making an awesome product. I'll be sure to recommend it to all my local 944 friends.
Since customers only ordered the "Diagnostic" version of the Solid-State Fan Relay, I started to think a similar version of the Solid-State DME Relay might also be popular.
10-15-2021, 12:42 PM
Out of topic
