Miata Turbo Forum - Boost cars, acquire cats. - 3 Bar GM map sensor BLUES... AGAIN!!!!

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- - 3 Bar GM map sensor BLUES... AGAIN!!!! (https://www.miataturbo.net/diy-turbo-discussion-14/3-bar-gm-map-sensor-blues-again-32729/)

Quote:

Originally Posted by johnhanson (Post 382369)

And if Travis had actually installed one of these into an NB before selling them, most of these issues could have been prevented. Only stating the obvious. Glad you're slowly figuring everything out though. Shit happens. That's why I did a MS because others had done it before me so I knew what to expect and had people to talk to if I had problems.

Hey these guys are the testers, they wanted their units early, and they knew they would be the first on the NB.

Quote:

OK, another update: the car now starts, but:
1) no matter what we do it wont stay on for more than 5 seconds. If I keep reving it it will stay on. If I just raise the rpm by applying the gas pedal but hold it and not rev it: it dies.
2) the MAP sensor requires less and less ADC to read 100kPA..this is not normal. Every time I turn the car on and it dies, the kPA goes down a little bit. I have to lower the ADC reading every time.
3) my wideband is not communicating with the adaptronic anymore. it did before and I didnt do anything to it, the gauge reads afr's but not communicating them to the adaptronic. I'll double check the wiring again.
4) I am using the stock iat sensor. Travis told me Stein might be using the GM sensor.
Stein, is this correct? If so, I'll have to call you about where you got yours.

Other than that, for the little time its on, it doesnt jump around anymore. Idles fine then dies.

Slowly we are making progress

I was really running out of gas last night. It was 1:45am and I had to be up at 7:00am heh. Only so much I'm good for, and today is one of my 14 hour days. Once we get the temp sensor in we'll get you the rest of the way setup. Its weird it dies after 5-10 seconds, but seems to be fuel related.

ordering gm iat sensor.

Quote:

Originally Posted by Stein (Post 382454)

All along Travis has said that you have to wire in the MAP and IAT. The problem here is that you had two complete noobs (me at 18psi) that had no experience doing the first installs. The other thing that was against both of us is we did everything (ECU and turbo install) at the same time. The MS guys suggest installing MS first to eliminate variables. I think the case could be made here as well. Get it running on a stock car first and it will be easier.

Once we figured out that I had wired the MAP wrong I have had no issues. The autotune worked well. I drove the car to work today.

OK got it, no worries. Thanks.

Quote:

Originally Posted by 18psi (Post 382638)

ordering gm iat sensor.

I didn't get a call from the seller, I'll see what I can get out of them tomorrow.

Quote:

Originally Posted by 18psi (Post 382399)

3) my wideband is not communicating with the adaptronic anymore. it did before and I didnt do anything to it, the gauge reads afr's but not communicating them to the adaptronic. I'll double check the wiring again.

Have you tried reflashing the ecu? Didn't Stein have to do this to get his ignition timing to work again. Having the map sensor wired wrong may have done something screwy.

Quote:

Originally Posted by sv650_ck (Post 382811)

have you tried reflashing the ecu? Didn't stein have to do this to get his ignition timing to work again. Having the map sensor wired wrong may have done something screwy.