QuestionI have a 96 new yorker and a 94 lhs
The lhs runs and the new yorker has no spark
on the running car i get 8.xx volts at the top wire on cam sensor and on the non running car i get no volts at that same wire but i get 5.xxv at the bottom wire. Both have a 3.5
AnswerHi Michael,
I believe that pin 1 wire on the camshaft plug of both engines should be 8v and orange in color. Sometime after '99 the wire did change to violet/white and had 5V on it instead, evidentally a change in the design of to sensor (as shown in by '04 manual). But that doesn't apply to a '96. I don't know which year that shift to 5v occured, but it was after '99.
Have you tried for a fault code readout? Turn the ignition key 'on-off-on-off-on and leave on' doing that in 5 seconds or less elapsed time. Then watch the check engine light, which remains 'on', to see it flash, pause, flash, etc. Count the number of flashes before each pause. Then repeat to assure an accurate flash count set. Then group the counts in pairs to form the 2-digit fault codes. The last code is always 55 which means end of code readout. Let me know the other numbers. That may tell you why you have not spark, so let me know what codes you get.
I don't know why you have 5v on the bottom wire and none on the top wire unless you weren't making good contact in the measurement of the top wire (#1 on the plug). The bottom wire #3 should read 5V and pulse to 0.3V as you turn the crankshaft via a socket on the crank pulley bolt. The 8V is the supply wire, the other wire is the signal wire. The middle wire is the ground wire. So there may be nothing wrong about the cam sensor if you get that pulsing change on the lhs tan/yellow wire.
