I have a bit of hesitation on accelleration. I want to change my AE from TPS to 50% TPS 50% MAP. I am not really sure what values to enter in the menu. I have left everything at the default for now. Any help/suggestions would be appreciated. I am running MS2 V 3.0 with 2.88 code.
Thanks!
Tom
MAP - TPS accel enrichment question
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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64Vair
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MAP - TPS accel enrichment question
RIT Rocks, Cancer Sucks!
Re: MAP - TPS accel enrichment question
Grab a datalog, then in Megalogviewer you can show trendlines of tpsdot and mapdot. These both represent rate of change of their respective inputs. For TPS, you can do that in the shop with the engine off, but for TPS dot, you need running data.
Also take a look at your datalogs to see if there's any noise or ripple on the MAP and/or TPS signal. Make sure you set the threshold values above the ripple amount. From there, vary the AE time amounts until it takes throttle smoothly at various rates.
On mine, my max tps dot when I whack the throttle was about 470 %/s. I set the max tpsdot bin to 500 and the min to 120 with a threshold of 100.
Hemicbx
Also, on the AE setup screen, the bargraph to the left of the TPS %/s bins gives a momentary indication of rate.
Also take a look at your datalogs to see if there's any noise or ripple on the MAP and/or TPS signal. Make sure you set the threshold values above the ripple amount. From there, vary the AE time amounts until it takes throttle smoothly at various rates.
On mine, my max tps dot when I whack the throttle was about 470 %/s. I set the max tpsdot bin to 500 and the min to 120 with a threshold of 100.
Hemicbx
Also, on the AE setup screen, the bargraph to the left of the TPS %/s bins gives a momentary indication of rate.
78 KZ1000, stock motor, MS-II v3.0 board, v2.89 code, fuel only, GPz IR TB's, LC-1 WBO2
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64Vair
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Re: MAP - TPS accel enrichment question
Thanks for the reply. I will do that when I get a chance, hope to have time this weekend. (Wow, working for a living really takes up your time! 
RIT Rocks, Cancer Sucks!
Re: MAP - TPS accel enrichment question
What is TPS DOT? Actually I know what TPS is but not TPSDOT?
2332 Air-cooled VW, EDIS, Garrett turbo, MSII, 15psi, 1300lb car. : )
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Art Vandelay
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Re: MAP - TPS accel enrichment question
It's the rate of change in the TPS value -- i.e. how fast you are applying the throttle.HPjunkie wrote:What is TPS DOT? Actually I know what TPS is but not TPSDOT?
1986 Mustang SVO, currently running MS2, upgrading with all new parts to MS3
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Mike_Robert
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Re: MAP - TPS accel enrichment question
MAPdot use can really help with tipin hesitation in some situations. I have found that setting the MAPdot threshhold as low as possible without gettin inappropiate triggers is important. One method would be to keep dropping it (whil idling) until you get unintentional AE triggers; at this point add, say, 5 to that number and give it a try. The other numbers are important as well and can be determined by spending some quality time viewing your logs.
-Mike
-Mike
Re: MAP - TPS accel enrichment question
Ok I know this sounds like I am a stupid but when you guys say AE, what is that? I mean i get AFR, VE, MAP Etc. Theres a lot of things in the tuning manual that dont correspond to the latest megatune program. Thank You Greg
2332 Air-cooled VW, EDIS, Garrett turbo, MSII, 15psi, 1300lb car. : )
Re: MAP - TPS accel enrichment question
Accel Enrichment. There is a glossary in the mega manual here: http://www.megamanual.com/v22manual/mapp.htm#glossHPjunkie wrote:Ok I know this sounds like I am a stupid but when you guys say AE, what is that? I mean i get AFR, VE, MAP Etc. Theres a lot of things in the tuning manual that dont correspond to the latest megatune program. Thank You Greg
Brian.
MS2 code2.89 on PCB v3.0