2007-10-31 19:00:36 · 9 answers · asked by clare w 2 in Cars & Transportation ➔ Maintenance & Repairs
circuit test meter ?
pull a plug out leave it in the wire, turn the bike or car over watch for a spark
2007-10-31 19:06:14 · answer #1 · answered by Anonymous · 0⤊ 0⤋
if you mean a 13A domestic plug, then you need to check each wire for continuity, brown/live, blue/neutral, green and yellow/earth. (from the plug to the end of the wire, Then make sure none of the wires short together when the lead is not connected or if the appliance is switched off.
2007-11-01 07:00:47 · answer #2 · answered by Paddy 4 · 0⤊ 0⤋
Check it? For what? Using a multimeter end to end should read about 4000 ohm's per foot. You can (from auto parts store) buy a spark tester for about five bucks to visually check spark output and the difference from one wire to the next. Also, touching the body of the plug to ground resting it carefully or vice grips/clamp whilst you engage the starter. Pull the fuse for the fuel pump first though.
2007-10-31 19:47:57 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Use a multimeter. The leads should be quite resistive, around 10 000 ohms + or - quite a lot. They should all be around the same though. If they appear open circuit then the internal gap will spark over in use, but performance will suffer. If they are zero ohms that's fine but you need a suppressor in the plug connector.
2007-10-31 22:14:57 · answer #4 · answered by The original Peter G 7 · 0⤊ 0⤋
Start the engine and when its running pull one lead at a time out of your plug .If the first one makes a difference to the running then thats the faulty one if not,carry on until you find the running has slowed down "thats your faulty one " you may also hold a screwdriver in your hand and with the end of it rub it along each cable and if one sparks then thats a faulty one
2007-11-01 00:34:06 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Tommy B's got the right idea, but I think he's got the order slightly wrong - pull one lead at a time, then replace it and pull the next one. When you get to the one that makes NO difference, that's the one that's not working.
If you've got a 4 cylinder car and one cylinder's not firing, pulling one of the good leads will make it run (more likely it'll cut out though) on 2 cylinders. Pulling the lead that wasn't working anyway will not make any difference.
2007-11-01 02:32:58 · answer #6 · answered by Anonymous · 1⤊ 0⤋
Use a multimeter. The repair manual should tell you how much is the typical resistance. For a certain Honda Accord it was 8000 ohms.
If you cannot get the manual then test each cable. Don't mix /swap the cables though as they are numbered . They should measure in the similar range.
2007-10-31 21:52:49 · answer #7 · answered by supercheapcamera 4 · 0⤊ 0⤋
Are you talking a CAR plug, or a domestic 13A plug? In either case, a good visual inspection is a first. Other than that??
2007-10-31 23:18:32 · answer #8 · answered by Anonymous · 0⤊ 0⤋
open the plug up and make sure the 3 wires are screwed tightly in the sockets. an easy way to remember is bLue=Left bRown=Right
2007-10-31 19:38:06 · answer #9 · answered by Anonymous · 0⤊ 2⤋