Gen3 Coyote installation

[Zlinman]

Here is what I have discovered about the installation of the Coyote Gen3. Step 1. Burn the FFR manual. First things is to NOT remove the stock oil pressure transducer. This will cause the motor to go into limp mode. Second, do not try and screw the new transducer into the oil filter housing. The engine has a metric straight thread but the new transducer is 1/8 pipe. You will need an adapter to run both transducers. Next is do not run the vacuum port on fuel pressure regulator to the engine. Leave it to the atmosphere and set pressure to 55 at idle. Here is a big one. The cmvv port on the front of the intake must be plumbed to a vacuum port, not to the induction elbow. Do not try and run engine without the side pipes installed. Causes the motor to think it is too lean. This will load up all the plugs to the point of having to remove for cleaning. Last is to get a tune from Lund Racing. I finally have a perfect running motor with no codes. Hope this helps someone. I received bad info from both Factory five and from Ford Performance. Last word. This motor is an animal. Back to painting.

[FFinisher]

Here is what I have discovered about the installation of the Coyote Gen3. Step 1. Burn the FFR manual. First things is to NOT remove the stock oil pressure transducer. This will cause the motor to go into limp mode. Second, do not try and screw the new transducer into the oil filter housing. The engine has a metric straight thread but the new transducer is 1/8 pipe. You will need an adapter to run both transducers. Next is do not run the vacuum port on fuel pressure regulator to the engine. Leave it to the atmosphere and set pressure to 55 at idle. Here is a big one. The cmvv port on the front of the intake must be plumbed to a vacuum port, not to the induction elbow. Do not try and run engine without the side pipes installed. Causes the motor to think it is too lean. This will load up all the plugs to the point of having to remove for cleaning. Last is to get a tune from Lund Racing. I finally have a perfect running motor with no codes. Hope this helps someone. I received bad info from both Factory five and from Ford Performance. Last word. This motor is an animal. Back to painting.

You should have asked. There is a wealth of info here- we could have helped.

Gen 3 wants 68psi.

[edwardb]

Glad you have it worked out. As Ron said, everything you've listed for the Gen 3 installation has been discussed and documented here over the past year or so. Well except, at least speaking for myself, running it with open headers. Did it briefly once on my last build with a Gen 2 Coyote and promised myself I'd never do it again. Just insanely loud. You're right, Ford Performance initially said the stock oil pressure sender wasn't required. But they've since changed their story. Factory Five only recently released Gen 3 instructions, and it shows leaving the stock sensor in and adding the gauge sender via a T fitting. Mine is also running well with a Lund Racing tune. Only 60 miles on it though. Hopefully our stay-at-home situation will change soon.

[GashF16]

Man this helps a ton! I have a Gen 3 Coyote and have been trying to make sense of the FFR instruction manual...many WTF moments since I got my engine installed 2 days ago. THANK YOU edwardb for pointing out that FFR just published a new Coyote Gen 3 install manual.

[Erik W. Treves]

If you set the fuel pressure to 55psi and had Lund tune to that, when you correct the fuel pressure to 68 psi , you may want Lund to verify the tune once more since more fuel will be entering the engine than before.... the Ford ECU should lean it out... but your long term fuel trims will be biased on the lean side. You want the long term fuel trims at zero.

[edwardb]

Man this helps a ton! I have a Gen 3 Coyote and have been trying to make sense of the FFR instruction manual...many WTF moments since I got my engine installed 2 days ago. THANK YOU edwardb for pointing out that FFR just published a new Coyote Gen 3 install manual.

The Gen 3 Coyote installation instructions from Factory Five are decent, and point out some of the differences required with the Gen 3. Like the oil pickup, flywheel, retaining the OE oil pressure sensor. Still doesn't have the CMCV vacuum line connection correct. Have it connecting to the intake instead of an actual vacuum source. I personally prefer the Ford designed cooling setup with an expansion tank versus what they show. But theirs is simpler and will work. Location of components, like the PCM and PDB vary by build and very much builder preference. Highly recommend also using the Ford instructions referenced in the Factory Five instructions. Gives a lot more specific detail especially about the wiring which leads to more understanding IMO.


If you set the fuel pressure to 55psi and had Lund tune to that, when you correct the fuel pressure to 68 psi , you may want Lund to verify the tune once more since more fuel will be entering the engine than before.... the Ford ECU should lean it out... but your long term fuel trims will be biased on the lean side. You want the long term fuel trims at zero.

Exact instructions from Lund when they did the tune on my Gen 3: "...set it to 60 psi static and leave the reference off so it only references atmosphere." Slightly different than the 68 psi in the Ford Gen 3 instructions along with a vacuum reference. But did what Lund told me and the tune is calibrated to that. Seems to be running fine.

[Erik W. Treves]

Paul... my only point is whatever the fuel pressure was set to when the tune was done - should not be changed AFTER the tune is completed.... we used to do this on the old EEC IV computers when supercharging with less than desirable effects long term.... whatever LUND says to the fuel pressure to is good for the LUND tune. I did the same on my engine for my custom tune and my regulator is connected to manifold reference ... but we tuned it that way vs. a normal mustang with a turbo setup that handles the needed fueling with injector pulse width and larger injectors.

All to say it isn't a one size fits all... To Ron's post - he is correct for the stock ECU tune; Yours is correct for the LUND tune - mine isn't a GEN 3 but I am certainly NOT running the Ford recommended fuel pressure setup for even the Gen 2 - but it's tuned that way.

I just didn't want the OP to think after the Lund tune had been completed, that it was ok to set it to something other than what it was already set to for the tune.... this is bad idea..... in my opinion.

anyway didn't mean to make this into a fuel pressure and tuning thread :) -

[stack]

Good info guys

stack

[edwardb]

Paul... my only point is whatever the fuel pressure was set to when the tune was done - should not be changed AFTER the tune is completed.... we used to do this on the old EEC IV computers when supercharging with less than desirable effects long term.... whatever LUND says to the fuel pressure to is good for the LUND tune. I did the same on my engine for my custom tune and my regulator is connected to manifold reference ... but we tuned it that way vs. a normal mustang with a turbo setup that handles the needed fueling with injector pulse width and larger injectors.

All to say it isn't a one size fits all... To Ron's post - he is correct for the stock ECU tune; Yours is correct for the LUND tune - mine isn't a GEN 3 but I am certainly NOT running the Ford recommended fuel pressure setup for even the Gen 2 - but it's tuned that way.

I just didn't want the OP to think after the Lund tune had been completed, that it was ok to set it to something other than what it was already set to for the tune.... this is bad idea..... in my opinion.

anyway didn't mean to make this into a fuel pressure and tuning thread :) -

Hey Erik. Agree with all your points 100%. I wasn't suggesting changing the fuel pressure after it had been tuned. Agreed it needs to be set and then left alone for the subsequent tuning. I was only reporting what Lund Racing had me do with mine since the OP mentioned Lund. Which is slightly different than how the FF and Ford instructions describe, and may not apply to everyone. Sorry if I what I said was confusing.

[pumpman]

I am building a Gen 3 with Coyote and having PCM/Computer issues. here is what Ford gave me on my computer what was wrong with it. I asked why each error happen and got no response from ford any help will be much appreciated. 133097

[edwardb]

I am building a Gen 3 with Coyote and having PCM/Computer issues. here is what Ford gave me on my computer what was wrong with it. I asked why each error happen and got no response from ford any help will be much appreciated. 133097

So what's actually happening? You've tried to start it? Or successfully started it? Looks like your clutch switch wiring isn't installed or working properly. Shouldn't crank without that. So a little confusing. Looks like you timed out your starter with a lot of cranking. Normal if that's what happened. P2004 and P2005 are the IRMC not working almost for sure because you don't have the vacuum hooked to it. Not covered in either the Ford or Factory Five instructions. https://thefactoryfiveforum.com/showthread.php?26630-Edwardb%92s-Gen-3-Type-65-Coyote-Coupe-59-Build-Complete-and-Graduated&p=351623&viewfull=1#post351623. Not sure about the rest without more information.