I've just assembled a second MSII, V3.0 and found an issue,
One is that the Map reading is 75kpa with no vac line connected - shouldnt it be 100kpa?
The map settings in the calibration screen are 10 and 260 as per the instructions.
Voltage on pin 1 of the sensor is 1.78 volts, and the same voltage is present on pin 23 of the cpu board
Any ideas on what to check?
Map reading incorrect
Forum rules
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).
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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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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Map reading incorrect
Your altitude, first. 
I'm not sure where you live, but in some cities that's actually normal. Are you using a 2.5 bar, 4 bar, or 3 bar MAP sensor?
I'm not sure where you live, but in some cities that's actually normal. Are you using a 2.5 bar, 4 bar, or 3 bar MAP sensor?
Re: Map reading incorrect
its the std sensor in the kit,
Found the problem though, it was a bad 10k resistor R6 which also made my voltage show as 27v.
Replacing the resistor solved the problem
Found the problem though, it was a bad 10k resistor R6 which also made my voltage show as 27v.
Replacing the resistor solved the problem