Tuners Please
Thread Starter
Pro
Joined: Apr 2001
Posts: 744
Likes: 13
From: Lenoir City TN
Tuners Please
I have a 91 L98, cam, heads, headers, intake etc. I've done all the tuning using moates equipment. Everything is great other than around 1100 to 1200 rpm's, off the throttle, the engine at that point wants to surge up and down in rpms. Not a great amount, maybe a couple of 100 rpms. I've checked all the tables to see if I could find a setting where things could possibly be competing with each other and I can't find anything. Have any of you guys experienced this and figured it out?
Chuck
Chuck
Drifting
Joined: Mar 2015
Posts: 1,275
Likes: 165
From: Utah
Heated O2 sensor i assume?
In my limited experience, pulsating RPM is relates to a lean condition.
Other times you just need to smooth out the fueling map.
i would start with raising the low spots in that range...
Also getting a wideband O2 was the best thing i have done for my tune, however i am on the third sensor...
Those things hate heat..
In my limited experience, pulsating RPM is relates to a lean condition.
Other times you just need to smooth out the fueling map.
i would start with raising the low spots in that range...
Also getting a wideband O2 was the best thing i have done for my tune, however i am on the third sensor...
Those things hate heat..
Thread Starter
Pro
Joined: Apr 2001
Posts: 744
Likes: 13
From: Lenoir City TN
Heated O2 sensor i assume?
In my limited experience, pulsating RPM is relates to a lean condition.
Other times you just need to smooth out the fueling map.
i would start with raising the low spots in that range...
Also getting a wideband O2 was the best thing i have done for my tune, however i am on the third sensor...
Those things hate heat..
In my limited experience, pulsating RPM is relates to a lean condition.
Other times you just need to smooth out the fueling map.
i would start with raising the low spots in that range...
Also getting a wideband O2 was the best thing i have done for my tune, however i am on the third sensor...
Those things hate heat..
Drifting
Joined: Mar 2015
Posts: 1,275
Likes: 165
From: Utah
You can get a wide band to work, they have a processor that converts the signal.
for my ebl i added it to the aux input, then told ebl what it was so it can process the data.
I don't know much about your setup, or if it's possible to add for use while data logging...
i assume it is...
Best resource i have come across is at the third gen forum, sub section "diy prom".
it's a camaro forum, but there are a ton of tuners on there.
including Rbob, the maker of the ebl i use, he is also very knowledgeable about other units.
for my ebl i added it to the aux input, then told ebl what it was so it can process the data.
I don't know much about your setup, or if it's possible to add for use while data logging...
i assume it is...
Best resource i have come across is at the third gen forum, sub section "diy prom".
it's a camaro forum, but there are a ton of tuners on there.
including Rbob, the maker of the ebl i use, he is also very knowledgeable about other units.
Thread Starter
Pro
Joined: Apr 2001
Posts: 744
Likes: 13
From: Lenoir City TN
You can get a wide band to work, they have a processor that converts the signal.
for my ebl i added it to the aux input, then told ebl what it was so it can process the data.
I don't know much about your setup, or if it's possible to add for use while data logging...
i assume it is...
Best resource i have come across is at the third gen forum, sub section "diy prom".
it's a camaro forum, but there are a ton of tuners on there.
including Rbob, the maker of the ebl i use, he is also very knowledgeable about other units.
for my ebl i added it to the aux input, then told ebl what it was so it can process the data.
I don't know much about your setup, or if it's possible to add for use while data logging...
i assume it is...
Best resource i have come across is at the third gen forum, sub section "diy prom".
it's a camaro forum, but there are a ton of tuners on there.
including Rbob, the maker of the ebl i use, he is also very knowledgeable about other units.
Last edited by cshuman; Nov 23, 2017 at 03:19 PM.
