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99 Dyna eng. light on after start-up. The engine light in…

Customer Question
39;99 Dyna eng. light...

39;99 Dyna eng. light on after start-up

Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about?

The engine light in speedo

Mechanic's Assistant: What is the model of your '99 motorcycle?

Fxdwg

Mechanic's Assistant: Are you fixing your bike yourself? What have you tried so far?

Ck'ed for codes, none found, need specs for ck'ing cam sensor

Submitted: 7 months ago.Category: Motorcycle
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Answered in 2 hours by:
12/19/2017
Motorcycle Mechanic: Steve, Motorcycle Mechanic replied 7 months ago
Steve
Steve, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 7,237
Experience: 30+ yrs. experience, MMI, HD technician, HD early, engine rebuild/performance, bike builder, kit bike program manager, CCI 2001-2004
Verified

assuming you have no spark........

- there are 3 wires on the cam sensor. red, black, green.

- disconnect the cam sensor from the ignition harness.

- on the ignition side of the connector, check for DC voltage at the red and check for a ground on the black.

- if you have no DC voltage or no ground, the ignition module is bad.

- if you have a DC voltage on red and a ground on black, with a small screwdriver, short the black and green. quickly and repeatedly.....while checking for spark.

- if you have no spark, the ignition module is bad.

- if you get spark, the cam sensor is bad.

let me know if you need more help.

Steve

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Customer reply replied 7 months ago
after start up (eng is running) red eng light is on !
Customer reply replied 7 months ago
in the auto world some veh have two sensors that control ign , crank & cam sensors. eng can run with either. just wonder if bad cam sensor could turn on eng light, crank sensor is good
Motorcycle Mechanic: Steve, Motorcycle Mechanic replied 7 months ago

That is not what you asked, above.

you asked how to check the cam sensor.

see answer above.

Steve

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Customer reply replied 7 months ago
sorry for the confusion, prob is eng light after eng running
Customer reply replied 7 months ago
I needed specs on cam sensor, was not sure how to ck it
Motorcycle Mechanic: Steve, Motorcycle Mechanic replied 7 months ago

my answer, above, shows how to check the cam sensor.

if you have no codes, you have no problem.

Steve

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