Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
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temporarily or
permanently
MAP
Scan Tool Range
0-145 kPa/0.0-6.99 Volts. The Manifold Absolute Pressure
(MAP) sensor measures the change in the intake manifold pressure from engine load, and speed changes. As intake manifold pressure increases, the intake vacuum decreases resulting in a higher
kPa reading. The scan tool MAP sensor voltage display can read as high as
6.99 volts when the MAP sensor signal circuit is open. This is caused by the scan tool software and should be considered normal. The actual signal circuit voltage is
4.9-5.0 volts.