Status Codes - MegaSquirt MS3-PRO User Manual

8.3 Tooth / trigger logger and troubleshooting RPM issues
128 64
- Digital
frequency
in 3
8.2.5.4 Status codes These describe which features are currently active.
Status 1
128 64
Full RPM Spark
sync table
switching
Status 2
128 64
Closed Overboost
loop idle protection
Status 3
128 64
Launch on Sequential
shift cut
Status 4 and 5 are development fields. You can set the Check Engine functionality to use Status
5 to record sensor ADC counts or input fluctuation levels.
Status 6
128 64
MAP Fan on
sample
error
Status 7
128 64
Limp Check
home engine
mode light
Status 8
128 64
Reserved Reserved
8.3 Tooth / trigger logger and troubleshooting RPM issues
Certain conditions such as electrical noise can cause the MS3-Pro to lose sync with the engine
position. This is called a sync loss event or a sync error. Common symptoms of this include:
• Feels like a misfire or a false rev limiter
• RPM in datalog suddenly drops to zero
• RPM in datalog suddenly spikes up
• "Lost sync count" increments while "SecL" counts up normally. (NB. If SecL suddenly drops to
zero this is a "reset"; see section 8.1.)
DIYAutoTune.com MS3-Pro manual version 1.036, firmware 1.3.4, 6/10/2015
8 TROUBLESHOOTING AND DATA LOGGING
32 16
Digital Digital
frequency frequency
in 2 in 1
32 16
Fuel table Sync latch
switching
32 16
Spark cut Flat shift
active
32 16
Soft rev 3 step
limit armed
32 16
Idle Idle VE
advance table
mode mode
32 16
A/C on Knock
detected
32 16
VSS VSS
based launch
launch lockout
8 4
Injector J CMP
8 4
RPM sync Config
error
8 4
Launch Launch
control control
active armed
8 4
Test mode 3 step
active active
8 4
AFR AFR
shutdown warning
8 4
VVT4 error VVT3 error
8 4
PW 4X Water
mode injection
enabled low
2 1
Injector I CKP
2 1
Lost data Need to
burn
settings
2 1
Nitrous Nitrous
stage 2 stage 1
active active
2 1
T log Fuel cut
2 1
EGT EGT
shutdown warning
2 1
VVT2 error VVT1 error
2 1
Spark Injector
disable disable
test mode test mode
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