I am in the process of assembling a MSII v3 for my 91 Mustang 5.0. I will be using the EECIV adapter board which I have already assembled. I am at the step 55 test and I am having some problems. When I power up the MS, none of the POTS work. The RPM pegs between 0 and 8000 RPM about once every second and the MegaTune shows a reset about every 5 seconds. I had one successful startup where the TPS, IAT and CLT pots worked (the O2 did not) but as soon as I turned up the RPM, the above problem returned. I have checked over everything in troubleshooting and all seems well. The timer is counting up normally and the Baro seems correct. Any Ideas?
My System
MS II V3 (Purchased about 2 years ago)
MegaTune V2.25
Firmware V2.89
MegaStim V 2.2
D1 Jumpered
D2 2k 1/4 watt resistor
TachSelect to OptoIn , XG1 to XG2, TSEL to OptoOut Jumpered
Thanks
RPM Fluctuations/Resets
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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).
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The full forum rules are here: Forum Rules, be sure to read them all regularly.
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).
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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Bernard Fife
- Master Squirter
- Posts: 475
- Joined: Thu Oct 29, 2009 12:54 pm
Re: RPM Fluctuations/Resets
"Never wrestle with pigs. You both get dirty and the pig likes it.” - George Bernard Shaw
Re: RPM Fluctuations/Resets
Lance: Thanks for the response. I did have the ECU type set though I do need to reset it each time I start MegaTune. I reflashed the processor and that seemed to settle things down a bit. I still have no response from the RPM pot and I am still getting an occasional reset.