Trouble Code Chart Lpg - Prins VSI LPG Installation Manual

Trouble code Definition
100 Lambda to long to rich.
101 Lambda to long to lean.
102 Lambda to long to lean during open
loop.
110 T-ECT>= 171°C
111 T-ECT>= -40°C
120 T-LPG>= 171°C
121 T-LPG>= -40°C
150 Psys<= Low_Level
160 ECM-VSI not activated
180 T-Board >= 90°C
181 Battery voltage to high
210-220-230-240-250-260-270-280 VSI injector
211-221-231-241-251-261-271-281 VSI injector
Adjusted pressure on idle out of range Adjust the idle pressure to the value shown by parameter " Idle Level "
310
311 Programm error during flahing the
memory
320 Psys voltage to low
321 Psys voltage to high
322 Psys > 3,5 Bar
330 unexpected parameter change
340 reducer warms up to slow
341 Gas leakage, system pressure is less then
1.25 bar after 4 hours when the engine is
not running
div. System switches to LPG but engine
stalls immediately.
div. No injection timing on LPG ( 0 Msec.)
div. The LPG system switches constantly
between LPG and Petrol
div. Engine hesitates on high revs, and not
running on all cylinders. Engine runs
good on idle.
Switch LED's don't lit up
div.
div. Fault codes when turning the ignition
off ( key out the ignition )
div. The orange LED on the switch flashes
div. The LPG system switches to LPG but
engine stalls immediately
div. Not running on all cylinders on lpg
div. No injection times on lpg
Injection time "falls" to 0 mSec on
div.
LPG
div. Check engine while running on LPG,
injector circuit malfunction, no lambda
control (limb home)
div. Not starting / running on petrol

Trouble code chart LPG

Check / solution
Check when operating on petrol and LPG that there is good lambda signal
movement.
Check when operating on petrol and LPG that there is good lambda signal
movement.
Check when operating on petrol and LPG that there is good lambda signal
movement.
Check if the ECT sensor (blue) in the reducer is connector is connected to
ground.
Check if the ECT sensor (blue) in the reducer has a power connection.
Check the ground connection of the Pressure/temperature sensor in the filter
unit.
Check the power connection of the Pressure/temperature sensor in the filter
unit.
Based on a pressure drop in the system, this can be caused by an empty LPG
tank, incorrect solenoid valve, polluted filter or incorrectly adjusted pressure.
Activate the LPG computer with the diagnostic program, using the F11 function
key.
LPG computer circuit board to hot, replace the VSI computer in a cooler area.
Check board voltage / alternator output and condition of the battery.
Injector current to high, check for short circuiting
overload
Injector current to low, check for bad connections.
noload
Check parameter settings, contact Prins Autogassystemen.
Check the ground connection of the Pressure/temperature sensor in the filter
unit.
Check the power connection of the Pressure/temperature sensor in the filter
unit.
Check the coolant temperature (T-ect) and the evaporator for leakage of the
first stage.
Contact Prins Autogassystemen.
Check the water connections / circuit.
Check the system for gas leakage.
LPG tank empty ?
Lock-off valves open ?
Check the injection module.
- Check coolant system for air.
- T-ect sensor in the evaporator malfunction.
Check for kinked or jammed LPG hoses (between VSI injector and couplings).
Check for blocked inlet couplings.
Check the main fuse of the VSI system
Check ignition+ (VSI wire 13)
Caused by different switch off times between ignition+ and injector power.
Connect VSI wire 13 to the petrol injector feed instead of ignition+.
Activate the LPG computer with the diagnostic program, using the F11 function
key.
LPG tank empty?
Check parameter 10, number of cylinders.
Check the connections of the injection module.
Check the injection module.
Replace injection module
Check the connections of the injection module.
73