Hondata 4bar map sensor

FlashPro questions & answers specific to the 2006-2011 Americas Civic Si
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9k_Dre
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Hondata 4bar map sensor

Post by 9k_Dre » Thu Sep 27, 2018 9:29 am

Hello,

What is the map sensor supposed to read when the car is off? My car is turbo'd and I believe that the map sensor is faulty. Right now it is -.9 MAP when trying to crank but car will not start. Is this correct?

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Spunkster
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Re: Hondata 4bar map sensor

Post by Spunkster » Fri Sep 28, 2018 2:14 pm

And what does it read when cranking?

9k_Dre
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Re: Hondata 4bar map sensor

Post by 9k_Dre » Sat Sep 29, 2018 7:01 am

I will try and post the datalog of the issue tonight.

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Re: Hondata 4bar map sensor

Post by 9k_Dre » Sat Sep 29, 2018 7:28 am

Also, before I actually try and crank the car with the key on ignII the wideband in flashpro manager is reading 29.40...

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Re: Hondata 4bar map sensor

Post by Spunkster » Mon Oct 01, 2018 10:31 am

Don't worry about that, as it is not running yet.

9k_Dre
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Re: Hondata 4bar map sensor

Post by 9k_Dre » Wed Oct 03, 2018 11:41 am

I attached the starting MAP from hondata as well as the 2 datalogs i took while trying to start the car. I tried reducing the cranking fuel trims because before I did this the car would crank then backfire very loud. Now it just cranks and cranks but wont start. I checked timing, I checked spark, and I am getting fuel. I am not sure what else it could be that is causing a no start. Car idled fine before I added coolant.
Attachments
STARTING MAP.fpcal
(19.02 KiB) Downloaded 21 times
stock map sensor.fpdl
(35.02 KiB) Downloaded 19 times
hondata 4bar map.fpdl
(44.33 KiB) Downloaded 21 times

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Spunkster
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Re: Hondata 4bar map sensor

Post by Spunkster » Wed Oct 03, 2018 11:45 am

Will it start if you put the stock MAP sensor back in and change the settings back to stock MAP sensor?

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Re: Hondata 4bar map sensor

Post by 9k_Dre » Wed Oct 03, 2018 11:50 am

i tried the stock map but no luck.

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Re: Hondata 4bar map sensor

Post by Spunkster » Wed Oct 03, 2018 12:55 pm

If it does not start with the stock sensor then it is most likely not a problem with 4bar map sensor. How are you checking for fuel and spark?

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Re: Hondata 4bar map sensor

Post by 9k_Dre » Wed Oct 03, 2018 1:43 pm

I put a node light to each injector and the gauge is reading 60 psi at the rail. I pulled each spark plug and grounded them then cranked the motor each one fires. I not sure what else to do

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Re: Hondata 4bar map sensor

Post by Spunkster » Wed Oct 03, 2018 2:07 pm

Is there evidence of the injectors actually spraying fuel when you pull the plugs?

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Re: Hondata 4bar map sensor

Post by 9k_Dre » Wed Oct 03, 2018 3:21 pm

Oh yeah, I pulled the plugs today and they were wet with fuel so I dried them and then reduced the cranking fuel trim by 10% but still no start

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Re: Hondata 4bar map sensor

Post by Spunkster » Wed Oct 03, 2018 3:25 pm

If you put the stock injectors back in and return the ECU to stock will it start the vehicle?

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Re: Hondata 4bar map sensor

Post by 9k_Dre » Wed Oct 03, 2018 3:29 pm

Haven’t tried that yet. I will try it tomorrow.

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