Skip the auto shop - Our mechanics make house calls

Q: Wired

asked by on

The two tone color wired is staying grounded which is the green & white wired

A: The wire goes to pin 8 of the ECM and to th...

The wire goes to pin 8 of the ECM and to the EVAP solenoid on one side and this side will ground the solenoid to control it. If the circuit is keeping the EVAP solenoid on all the time, then you need to disconnect the connector at the ECM and EVAP and see if it is still shorted to ground. If it is, then you need to trace the harness to see if it is chafed and grounded somewhere. If the wire is no longer grounded then you may have an ECM short.

Make sure you are using a digital multimeter to check for grounded circuit. You should also use a scanner to turn the EVAP solenoid on and off to see if the ECM is able to operate it.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I hear a grinding noise when I shift to third gear

Hello. This is a common problem with your vehicle. It is so common, in fact, that Honda has a technical service bulletin for it. The problem is an issue with either the a failure in the 3rd gear synchro or...

Q: Why would my ecm or tcm overheat

All the ECM's or PCM's will generate some normal heat from the transistors, processors, or chips. If you are having failure from a problem, then there should be codes stored inside the module that may indicate the problem. You may...

Q: Humming noise coming from Right Front hub, click noise in the steering gear - What is the problem? 2004 Cadillac Escalade

Hello - I believe the humming noise you mention in the right front wheel area is a worn front wheel bearing/hub assembly. If the noise is louder when turning left while in motion, that would confirm the diagnosis. I would...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...