Check Engine light does not come on when MAF unplugged

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03-22-2010, 07:28 PM

fender1983

1st Gear Member

Thread Starter

Join Date: Jan 2010

Location: Rochester, MI

Posts: 90

Check Engine light does not come on when MAF unplugged

I have tried unplugging my MAF sensor and engine check light does not come on. The engine idles and runs okay, unless you stomp on gas pedal. When I plugged it back on the car runs much better.

Why no warning light came on???? How would I know if something goes bad in the system?

The bulb is working, it will light up when you turn on ignition.

03-22-2010, 07:30 PM

Hangwire

4th Gear Member

Join Date: Jul 2008

Location: NC

Posts: 1,956

Drive with it unplugged, it will come on trust me. Your car will also have a lot more pep to it haha.

03-22-2010, 09:31 PM

MU71L4710N

5th Gear Member

Join Date: Aug 2007

Location:

Posts: 3,189

CEL will pop up after the car has driven for several minutes with a problem. ONE misfire will not trigger a CEL, but 5 minutes of driving with misfires will.

stop doing your own diagnostics for non-existant problems, your going to break something.

03-22-2010, 09:35 PM

dr.apex

2nd Gear Member

Join Date: Feb 2010

Location: Illinois

Posts: 364

Quote:

Originally Posted by MU71L4710N

stop doing your own diagnostics for non-existant problems, your going to break something.

If it aint broke, don't fix it.

03-23-2010, 12:09 PM

Mr99cobra

2nd Gear Member

Join Date: Jun 2009

Location: Missouri

Posts: 156

Can I ask why we are unplugging things to see if the engine light comes on? And yea it takes a while. I forgot to plug mine in before and drove all day before it came on.