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Lost power to connection to do emiissions testing

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There is a blown fuse try to locate and replace it

Posted on Nov 17, 2009


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Lost all power lights totally and engine shut off

check battery cable connections, Good Luck

Mar 26, 2015 | 2004 Chevrolet Silverado

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Emiission control light on

run fault codes as there are a number of sensors that will put that light on from the exhaust (o2 Sensor- cat converter-leaking inlet/exhaust manifold) to canister control sensors.

Dec 07, 2013 | Kia Cars & Trucks

1 Answer

I was having this problem with the Honda radio and I have since replaced it with an after market one. I still have the problem with needing to disconnect the battery for the radio to work for a little...

a new radio?, or used, make and model # , must i guess?
all modes on the radio dead, AM/FM,CD/USB/IPOD jack
ALL, that be the first tests and if all bad that means you lost power.
does the radio scan? show signs its trying? when asked, LCD live? or dead. all i know is the word PROBLEM (vast possible)
did you ask the maker of said radio.
did you follow the new radio's instructions sheet.?

disconnecting the battery, wow !

the radios can have 3 or 4 power pins.
1: Radio power (head end power)
2: dial light (goes to car park dimmer)
3: some have a memory wire, if not connected all programming will be lost. this must go to HOT ALL TIMES line.
4: electric antenna, (it's an output but is power)]

and at least 1 good speaker connected.
and for AM/FM any test antenna or just a wire 12ft long works.
the radio can be bench tests.
1 battery 12v
1 radio
1 speak or 2.
1 antenna. now can test for days like this..... anyone.

Sep 23, 2013 | 2005 Honda CR-V

1 Answer

I turn the key to start & i get nothing

When you turn the key to on, do the warning lights and gauges come on normally? Any reason to suspect the battery is low? Has the starter motor performed flawlessly up to this point?

Without a voltmeter or test light, one's best choice is to take the starter off and have it tested. With a test light, check for power on the small purple wire at the starter solenoid, with the key held in crank. If power there, probably bad starter or solenoid. If no power, start checking the start circuit-power is lost between the ignition switch and the starter solenoid-clutch interlock switch or park/neutral switch may be the problem.
Battery cables, terminals, starter electrical connections, and ground screws: make sure all are good with tight clean connections.

Sep 06, 2013 | 1991 Chevrolet Cavalier

1 Answer

All electrical works, but when turning key there is nothing

You still need to have the battery tested. The starter requires more current than anything else in the car. Once you have a known good battery, then you have to follow the wiring diagram to determine where the power is being lost. Test for power arriving on the small wire at the starter with the key held in start position. If power found, verify all cable connections first and then replace the starter. If no power on that wire, you will have to test the rest of the circuit.

Aug 13, 2013 | 2001 Dodge Dakota

1 Answer

Did not pass a emiissions inspection fail HC ppm and NOX ppm

with out see the failure numbers i can tell you that the egr valve may be partly blocked . it may open because it would have failed if it did not open.but the passage that lets the gas go through the valve may be can inspect this by removing the egr valve . when you get it off use a small knife and clean the carbon can run the engine with the valve off .when you do .the engine should have a large vacuum and exhaust leak.if you are missing ether leak then it will need to be cleaned until you have both.


Apr 18, 2011 | 1995 Mitsubishi Galant

1 Answer

I was listening to radio while replacing blower motor, while reinstalling lower dash panel i lost radio and dome lites,all fuses are good all connections are pluged in i'm lost as to where to look. any...

use a test light, and pobe the raido fuse for power and dome light fuse if power is there try to ground the fuse with a pice of wire to the could have lost a ground connetcion.if not try to provide power to the fuse.

Feb 05, 2011 | 1992 Dodge Dakota

1 Answer

Driver side parking light and brake light will not work. We have changed the fuse and light bulb, disconnected the wiring harness.

Check you have not lost the local ground connection to the light.
Use a test lamp or multimeter to test for availability of 12V power at the lamp sockets.

Jul 08, 2009 | 2003 Dodge Caravan

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