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Old 09-06-2012, 09:57 AM   #6 (permalink)
Liquid_G
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Location: Chicago Burbs
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Ok so the TL ; DR version is I'm a big dumbass..

Long version. Story time:


So on the way home to Chicago from our Wekfest NJ trip 2 weeks ago, I was having a problem with the car where I would press the gas and would have almost no power.. I could cruise and RPMs would stay up, but I'd press the gas and the rpm's would only slowly start climb.. It was at this point that people in our caravan told me my brake lights were on, even though I wasn't pressing the brake.

Got the car home and did some forum searching, had one guy report the same thing, (Mike I believe) and he said his brakelight switch attached to the brake pedal needed adjustment. For those that don't know, it looks kinda like this. Like a plunger type switch that rests against the arm of the brake pedal

So I unscrewed it, tested it about 1000 times with a multimeter, didn't seem like that was it. So I put it back in and started checking other things.. I noticed then that when I pressed the brake, my parking lights were lighting up.. after checking a few things, I eventually traced that to be a short in the connector for my jdm rear foglight.. My throttle problem only happened at night, and what was happening was the short was feeding power from the headlight circuit into the brake light circuit, and because the ecu thought the brakes were being applied, it limited the throttle to only 15%. So after fixing that last week, I didn't really even drive the car, only moved the car in and out of the garage onto the driveway a few times..


So last night I got the car up in the air, and none of the wheels wheels would spin freely. Pulled off one of the back wheels and undid the cailper bolts, e-brake was fine, but the caliper had pressure on it. So I'm thinking great wtf is this now.. Checked fluid levels again.. that was fine, Thinking maybe ABS was freaking out I pulled the battery to try and reset the ecu.. nothing..

It was at that point I had the wife disconnect that brake light switch thinking maybe there was something wrong with that? There was, but it wasn't electrical..

Remember when I pulled out that brake light switch? When I put it back in I had that thing cranked all the way down, so much so that it was actually pressing the fking brake pedal in.. Got under the dash and loosened it up and sure enough the brake pedal rises like a whole inch.. It wasn't pressed enough for the brakelights to go on, but enough to prevent the car from moving.. Totally explains why my brake pedal felt so hard..

So ya I'm a dumbass.. Just glad it wasn't something more serious.. Thanks for the suggestions guys..

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