NO SPARK ON ENGINE CRANK. - 99 VW CABIO MK3 NOT MK3.5
1999 Volkswagen Cabriolet
March, 18, 2012 AT 12:44 AM
New: coil, cap, rotor, coil wire, plug wires, plugs, crank position sensor, battery, electrical end of key switch.
Swapped in substitute ecu, same part number, different suffix. My ecu ends with Q. Swap ends with D. Otherwise same part number.
Verified continuity of crank position sensor center wire back to ecu harness. Verified continuity of distributor sensor center wire back to ecu. Did not check +- on either connector.
Nothing I've changed has made coil spark. Alarm did go off when fresh battery installed. Reset using key in driver door unlock.
Starter cranks normally. Just nothing works to allow the system to spark. This is making me nuts. Any help appreciated.
testing spark by grounding coil output wire to block.
check engine light on with key on.
no codes showing with obd reader.
Very good link. I found a similar car in the junkyard. I'll go pull the distributor if it exists, and use it to trouble shoot this issue. 100% thanks for your interest and help. This isn't finished until the car starts.
March, 18, 2012 AT 2:48 AM
Cam/distributor signal is hot needed on this engine for it to run... the crank signal is the main
input. Crank sensor output should be close to 2V AC or more while cranking.