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Ignition problem...what is this part?

Featured Replies

here is the low down

 

I'm not getting spark.

 

Checked Ohms on coil..they are good

 

no power to coil

 

power to this thing...but no power out to coil...what is this part? It is connected to the coil bracket.

 

underside

DSC04174.jpg

 

 

top side

DSC04173.jpg

The entire bracket has to be grounded for the part in question to work. No grounded bracket=no spark.

  • Author
The entire bracket has to be grounded for the part in question to work. No grounded bracket=no spark.

 

hmmmm...ok...i'll check that...thanx

That is the ignition amplifier - it is used to trigger the coil from the ECU signal. They are known to occasionally fail, but it's not common.

 

GD

  • Author

ok...I'm getting .6 volts out of the resistor or ignition amp to the coil...that doesn't sound right to me. what should I check next?

Edited by King of Poop

With the amp connected and powered you should have 12v to the coil + side with the ignition ON. If you don't then you have a bad ground or a bad amp.

 

GD

  • Author
With the amp connected and powered you should have 12v to the coil + side with the ignition ON. If you don't then you have a bad ground or a bad amp.

 

GD

 

fart....well grounds seem good...so i guess its the amp...thanx guys

  • 2 weeks later...
anyone know where I can find this part...besides a junk yard?

 

You don`t need one.A bad ignition amp won`t prevent you from having 12V on at least one side of the coil.Check fuses,fusible links and the ignition switch instead.

 

BTW-the ignition amp doesn`t power the coil,it grounds the coil.

Edited by naru

Hhmmm - yes were you checking power at the round plug or the two-pin spade terminal to the amp? If you don't have power at the black/white wire on the round plug with the ignition ON then you have a supply issue. I may have mis-understood what you were refering to when you said you had 12v to the amp as both the round plug and the two-pin spade connect to the amp but only the wires from the round plug connect to the coil....

 

GD

I will reiterate the fusable links in my car they regularly come undone and have to be pushed down. they can do weriod things to a car. Mine does not get enough gas to the carb when they are not in all the way and then the shift up light comes on. 86

 

My nephews car he got free because they could not figure out what was wrong with it it would not start at all. (81 sub) All that was wrong was the fusable links needs to be pushed in as they popped up a little. his did absolutly nothing other then click when he turned the key in the ignition. (it is not a perfect car though it runs on only 3 cylinders)

 

little black box by the overflow tank pop off the top and pull them out then push then down all the way. mine loose conection about 1 time every a month or so. However it usually is just one fusable link.

 

HOWEVER I AM NOT A MECHANIC.

 

But we spend a week trying to figure out what was wrong with ours. and $200 in unneeded parts. We even had our mechanic friend stumped and he is really good most of the time.

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