Chrysler codes,. only.
on newer Chysler, cars they have many codes with 106, leaving out the prefix is bad idea.
P0106 is MAP performance failure. (that dont mean replace it)
the puter has no IDEA
what is wrong, only that tests failed
here are the conditions. When Monitored and Set Condition
- When Monitored: Engine running for at least 30 seconds and no fault in the throttle valve actuator.
- Set Condition: Low limit: The Manifold Absolute Pressure (MAP) Sensor reading is below a calculated value when the throttle valve angle is greater than 80F for approximately 5 seconds. High limit: The MAP Sensor reading is greater than a calculated value that is determined by engine speed and throttle valve angle for approximately 5 seconds.
now in gringo or bar stool.
1: the puter brain saw you go near wide open throttle
map sensor (vacuum sensor) do not show new zero vacuum.
even a clogged air filter could do this, causing a false high vacuum POSSIBLE CAUSES
MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT OPEN
MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO GROUND
MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
5-VOLT SUPPLY CIRCUIT OPEN
5-VOLT SUPPLY CIRCUIT SHORT TO GROUND
5-VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE
5-VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND CIRCUIT
MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND CIRCUIT
MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO 5-VOLT SUPPLY CIRCUIT
SENSOR GROUND CIRCUIT OPEN
ENGINE OIL SENSOR
MANIFOLD ABSOLUTE PRESSURE SENSOR
POWERTRAIN CONTROL MODULE
then the FSM goes to step by step tests. to find above reasons.
omitted. (too long )
the word low is ambiguous in all FSM.
it can mean, low plenum pressure,
or low vacuum (opposite)
and low voltage, its a pain in the xxx to find this fact out.
the map outputs high voltage for low vacuum (same as high absolute pressure)
the fsm tests are inane.
we check the voltage out of the map
and wide open throttle for 1 second. just gun it and watch.
here is what it does.
left side is wide open throttle, idle is 20 inchs. key on is, WOT.
so, what is that
4.5v is keyon
start engine, get about 1.5v
the gun engine, then drop throttel to zero throttle fast
the causes,. huge vacuum about 24 inches, or 1v or less
this is a working MAP. if those tests pass.
the test (OBD2 monitor) fails for about not getting near 4vdc from MAP output pin, DOES THIS HELP?