Modular V10 (6.8l)  

PCM wiring diagram injector 1 no signal...

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Old 09-26-2014, 04:13 PM
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PCM wiring diagram injector 1 no signal...

Can anyone tell me how to test for a bad wire from the pcm to the #1 injector before I buy a pcm?

The injector has no signal according to the noid lights and #1 reads as a misfire. This means a bad wire or the pcm is bad right? could it be anything else?

I need to check the signal at the pcm but i'm not sure which wire I am working with. I haven't looked yet, but I'm assuming I can get to it on the driver's side firewall...

Thanks.
 
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Old 09-26-2014, 06:28 PM
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Ok...well I just tested the resistance on the wire from the pcm to the injector and it's clean. It must be the pcm - will order one in the morning.

I guess I'll be installing it in a dealer's parking lot outside of the service area, lol!
 
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Old 09-27-2014, 11:15 AM
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Well, first you start with identifying specifically what you're working one, otherwise, there's no way to look up the correct diagrams.
 
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Old 09-27-2014, 06:27 PM
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Honestly, I don't know how I can be more specific...
 
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Old 09-30-2014, 07:56 PM
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Vehicle and year, specifically, neither of which were provided.
 
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Old 10-01-2014, 05:42 PM
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Originally Posted by projectSHO89
Vehicle and year, specifically, neither of which were provided.
2000 Ford Excursion. However, I don't really need whatever help you think you could have provided.

For everyone else... I replaced the PCM. I bought one from O'reilly's. I was going to use autoecms (Dealer recommended) but after seeing how their Amazon rating is in the toilet and the following email communication, I couldn't bring myself to use them:

Hello,

My pcm (2000 ford Excursion 6.8L V10) is a YC3F-12A650-AMD but according to Ford PCM YC3F-12A650-AMD information, there is an updated version - YU7A-12A650-BYA.

Do I order the same number as mine or the "updated" version? Also, I noticed you sell on Amazon but did not see the core charge that is listed on your website. Is there a core charge if I buy through Amazon?

Thanks,
Robert

***************

HELLO,

ORDER BASED OFF OF YOUR ORIGINAL NUMBER. WHEN YOU HAVE THE UNIT PROGAMMED IT WILL THEN BE UPDATED TO THE LATEST CALIBRATION.

AMAZON PRICING IS RETAIL. OVER THE PHONE OR OUR WEBSITE IS WHOLE SALE WHICH OFFERES A REFUNDABLE CORE CHARGE


THANK YOU

AUTOECMS.COM

**************

Hello again,

Is the price better wholesale? I’m not sure what that means. The Amazon price is $395 +$15 for shipping. Your website shows $395 + $100 core + shipping. Do you have the capability to test the pcm’s at your shop? I couldn’t find any warranty info.

Thanks again,
Robert

***************

WHOLESALE OFFERS A $100 CORE REFUND WHICH MAKES THE TOTAL PRICE $100 LESS THAN RETAIL PRICING AFTER THE CORE IS RETURNED

THANK YOU

**************

When I tried to order through the website, the total was going to be $495 plus shipping. Is that a mistake? If not, then it would equal the $395 but without the core to deal with. Do you see where the confusion is? Amazon is 395 without core and the website is 495 with the core and 395 after a refund. Is it supposed to be $295 after the core refund?

***********

PRICING IS $495.00 + SHIPPING ON AMAZON

ON WWW.AUTOECMS.COM THEY ARE $395 + $100 CORE + SHIPPING

************

Well, the price on Amazon yesterday, and at the start of this email communication, was $395. I will assume you changed it in lieu of our conversation. That is an under handed thing to do and I now understand why your rating on Amazon is so low. I’m not sure if you find humor in conducting business this way, but you are wrong in my book. In addition, typing in all caps is annoying.

Robert
They never wrote back after that...

Now that I have a signal to my number 1 injector, I replaced the plug and I still have a miss somewhere. Now I have to start troubleshooting all over again...
 
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