Question about 1994 Plymouth Sundance

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My after market radio does not want to turn on . all the power and ground wires are installed correct . wires are spliced together tho. ive also changed the fuse labeled " radio"

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Do you know that you have power and ground. Check with a volt meter or test light across the two wires that are your power and ground. You should also have a memory wire that is usually yellow, but this should not keep the radio from coming on.

Posted on Nov 08, 2010


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No injector pulse 4 cyl 93 f250 460

if you have a $5 test light, you could find the problem. just know that all eight injectors have a constant voltage applied to them anytime the key is in run or start. and also that 4 of the injectors share a common ground, they have their ground wires spliced together before the ground wire enters the pcm to be internally grounded. and the other four injectors are the same- their ground wires splice together. so your four that don't pulse have lost either the power to them, or the common ground wire for the 4 may have broken. or lost connection.

it is easier to check the power side first, so clip a test light lead to the negative battery post or cable, turn the key to on,and probe each injector connector. one of the terminals at all eight injectors will be the power wire, and it should light up the test light. if all eight injectors have power to them, you know it must be a ground side problem. if you find that 4 injectors have no power to them, look for a broken splice in the power wire to all injectors. back in those days, injectors were "bank fired". one side or bank of the engine all had the injector grounds spliced together, so all injectors on one bank fired (pulsed) simultaneously, and then the other bank was fired or pulsed. that was good until sequential injection matched the pulse to the cylinder ready to fire, more precise, and in the modern systems each injector ground has a separate ground inside the pcm. no more splicing of the ground wires, and having bank fired engines.

when the pcm grounds the circuit, the injector coil is energized and the injector opens to spray fuel out. so the injector has constant voltage to it. only when the circuit is grounded is that power applied across the injector.

Jan 22, 2015 | Cars & Trucks

1 Answer

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It sounds like you shorted a wire during the installation and the fuse is probably blown.

Jan 01, 2013 | 2003 Dodge Durango

1 Answer

Radio on but no sound after installing after market subs

to create a spark you must have had power connected somewhere. Did you have your radio turned on when you connected? if yes you may have blown the amp in the radio. If no then you have other issues with wiring and possible damage.
It's one of those instances where I'd need to be there to diagnose it.
Start by double checking the stereo is working, check its wiring is correct try each speaker connection in turn. If the stereo works and all the outputs work then double check the amps wiring and try a normal speaker connected to it. You must get the picture by now, you need to identify the source of the fault. to help you better I'd need a wiring diagram.

Dec 20, 2011 | 2003 Toyota Camry

1 Answer

Hooking up after market radio have power no sound i have a 2000 chavy blazer.

make sure the deck is grounded to the truck. did you use the factory wire adapter, or did you splice into the wiring harness? did you get a lock out when you took out your old deck?

Feb 27, 2011 | 2000 Chevrolet Blazer

1 Answer

Need to hook up a new radio but cant find the hot wire

your best solution is go to a junkyard tell them you need the radio clip for the factory radio splice them back together buy colors go to your local radio shop and get a wire harness so u can hook up a after market radio good luck

Jan 22, 2011 | 1998 Cadillac Eldorado

2 Answers

Have after market radio and need to know the color codes for the 12volt constant(yellow) and 12volt switched(red) on the radio. Which color wire from the delco harness goes to which?

In New Zealand we can buy adapter harnesses,whereby you plug the correct one into yr cars wiring ,then specify what radio it is ie JVC,Pioneer,Sony,Panasonic,Alpine,then plug that one into the radio,and voila,put the two together,very easy

Jul 03, 2010 | 2001 Chevrolet Silverado 1500

1 Answer

Installed car radio not turning on

do you have a tester to make sure you connected the wires right sometimes if you have the yeloow or orange wire for display you have to wire red wire and display wire together for power and make sure you ground the black wire good as well.. i remember buying a harness and there was one pin missing that didnt match up with of harness of the car

Feb 20, 2010 | 1998 Honda Civic

1 Answer

I tried to fit a new stereo and when i did the dashboard lights went off and now i have no outside temp, or warning lights basically the whole panel has gone off, i've checkd all the fuses and they are...

I bet you sed the black wire with a tracer stripe (or similar wire) as the ground for the after market radio. The OEM radio uses this wire to dim the light to the radio when you turn the headlamps on. Now it dimmed the dash lights and other stuff totally out. Fasten the aftemarket radio's ground wire to a chassis ground on the dash's metal frame. Don't splice into the OEM dimmer wire. Better yet get a OEM to Aftermarket pigtail that uses your OEM connector. These come with a simple diagram as well.

Jun 12, 2009 | 2003 Renault 181

2 Answers

Installing an aftermarket stereo, spliced the wires and have everything connected including the remote wire to the factory amp wire but still no sound.

There is no remote wire on these newer trucks....03 and up....u have to buy the harness....although i didnt....i have an 03 gmc sierra and just pulled the schematic and matched the wires. And there is no programming to do on an aftermarket stereo.....I work for GMC and we cant program aftermarket stereos......if u buy the right harness ...and its over $100 then everything should work just fine.....and this does not disarm ur alarm system either....mine still works fine....hope this helps

May 08, 2009 | 2003 GMC Sierra

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