Difficulty tuning after mass air conversion
Moderator
Joined: Jun 2003
Posts: 3,550
Likes: 72
From: Calhoun GA
I bet the MAF transfer function in that ECU needs to be tuned for that meter. The only way you are going to be able to properly tune it is with a datalogger, where you can see short & long term fuel trims. That or force the ECU into open loop, watch your A/F ration and calculate the error between what is commanded and what you're seeing on the wideband, then apply that error to the MAF transfer function. This is with verifying that all wiring is correctly terminated, firing order is correct and fuel pressure and vacuum readings are good.
Also, I don't know how well split O2 sensors work if they're both terminated to the same pins on the ECU.
Do you have a way of datalogging, and some type of aftermarket DIY tuning?
Also, I don't know how well split O2 sensors work if they're both terminated to the same pins on the ECU.
Do you have a way of datalogging, and some type of aftermarket DIY tuning?
5th Wheeling
Joined: Jun 2020
Posts: 25
Likes: 0
From: Shawnee KS
Had to create a new account as cancelling the monthly vendor payments ($$$.$$) during the pandemic apparently entirely disables the account (can't even view the forum, can't post, can't access PM's, etc.) and they told me I'd have to make a new account to have any access to the forum. Can't send PM's yet with this account. Sales at Stinger-Performance.com is the email.
5th Wheeling
Joined: Jun 2020
Posts: 25
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From: Shawnee KS
I don't have access to PM's with the new account yet and can't access anything with the old account. REMOVED OFFSITE LINKS TO SALES WEBSITE!
Last edited by glruff; Jun 11, 2020 at 05:33 PM. Reason: Removed links to offsite website
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
If you stop making vendor payments, you become a former vendor that is no longer allowed to advertise here.
Whether or not you are going to become a vendor again, I don't know. Yet. But for now, you have no legitimate vendor status here.
Thread closed.
Whether or not you are going to become a vendor again, I don't know. Yet. But for now, you have no legitimate vendor status here.
Thread closed.
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