Slow Progress is better than No Progress.

[Beach-Burban]

Originally Posted by nsiti

Sorry to hear. Getting stranded is the worst. Have you contacted Edelbrock customer support to get their feedback?

Good call nsiti, but I was first doing my due diligence by checking the things they might ask me about…and as it turned out, the Tech really knows his stuff and identified the issue very quickly. It was a faulty MAP Sensor (so I replaced this one with a quality “Made in the USA” one!)…and being out of range prevented the trigger signal to the injectors from being sent, so they weren’t squirting! He’s also going to help me dial-in the system after I get another 50 miles or so on it!

Woody

[Beach-Burban]

Originally Posted by Ol Blue K20

X2, maybe they've experienced this before.

You are correct Dale…the Tech has been with Edelbrock for a really long time and is the Lead-Tech for the Pro Flo 4 EFI’s, so he knew exactly the right questions to ask and quickly resolved my issue!

Woody

[Beach-Burban]

Originally Posted by HO455

Oh man what a bummer! I'm afraid I don't know enough about your set up to provide troubleshooting help outside of basics things to check.

Good luck and let us know what you find.

I’ve been consumed with learning about this system for over a year now, and I still didn’t know what to look for other than the basics!!! I’ve got the Tech’s name and number in my phone’s Contact info now, so I’m feeling better about it!

As I said in my other response…he’s even going to help me dial-in my “off-idle” issues and square things away for me after another 50 miles or so of the ECU’s “self-learning” regiment!

I didn’t get a great answer as to why the MAP Sensor failed…but it was an AC/Delco product, which I’m pretty sure is made in China? My replacement is made in the USA by Delphi, who is the OEM parts supplier for GM now…so that could be the answer?

Woody

[nsiti]

Originally Posted by Beach-Burban

Good call nsiti, but I was first doing my due diligence by checking the things they might ask me about…and as it turned out, the Tech really knows his stuff and identified the issue very quickly. It was a faulty MAP Sensor (so I replaced this one with a quality “Made in the USA” one!)…and being out of range prevented the trigger signal to the injectors from being sent, so they weren’t squirting! He’s also going to help me dial-in the system after I get another 50 miles or so on it!

Woody

Glad to hear. Did the faulty MAP sensor come with the Pro Flow kit? Are they replacing it under warranty?

Cheers,
Nick

[Beach-Burban]

Originally Posted by nsiti

Glad to hear. Did the faulty MAP sensor come with the Pro Flow kit? Are they replacing it under warranty?

Cheers,
Nick

Thanks Nick…I’m relieved the fix was something that was readily available, plus I learned something!

Yes…the AC/Delco was pre installed on the throttle body when I received the kit, but I don’t actually know if it would be under warranty? That’s something I’ll look into after the Tech helps me finish with the “Advanced Tuning”…as he’s not the person that would be making that call (but I’ll gather any intel about it along the way!).

Nick…Did you ever receive your Pro Flo 4 system, or did you cancel that order?

Woody

[HO455]

Great to hear that tech support actually provided support. Fingers crossed on the warranty side.

[LockDoc]

Originally Posted by HO455

Great to hear that tech support actually provided support. Fingers crossed on the warranty side.

I agree, I certainly wouldn't hesitate to ask.

LockDoc

[nsiti]

Originally Posted by Beach-Burban

Thanks Nick…I’m relieved the fix was something that was readily available, plus I learned something!

Yes…the AC/Delco was pre installed on the throttle body when I received the kit, but I don’t actually know if it would be under warranty? That’s something I’ll look into after the Tech helps me finish with the “Advanced Tuning”…as he’s not the person that would be making that call (but I’ll gather any intel about it along the way!).

Nick…Did you ever receive your Pro Flo 4 system, or did you cancel that order?

Woody

Hi, I did receive my Pro Flo 4, not long after you. I recall that it was extremely delayed due to covid. The supply chain was seriously disrupted. My cynical mind wonders whether there will be a greater level of defects for items built during that period.

My restoration build is in the final stages of bodywork, of which I've been posting photos and brief commentary in the build section of this forum. Hopefully the engine and efi installation wil commence in a couple of months.

Keep us updated on your progress!

Nick

[Beach-Burban]

Originally Posted by HO455

Great to hear that tech support actually provided support. Fingers crossed on the warranty side.

And it’s additionally great that Peter (from Edelbrock) stayed in Torrance when the HQ’s relocated out of state, and has told me to ask for him whenever I call for help!

Yep…fingers crossed!

Woody

[Beach-Burban]

Originally Posted by LockDoc

I agree, I certainly wouldn't hesitate to ask.

LockDoc

I’m in agreement too, Leon…but I’m focusing on the Tech Support right now, then I’ll ruffle a few feathers.

Woody

[Beach-Burban]

Originally Posted by nsiti

Hi, I did receive my Pro Flo 4, not long after you. I recall that it was extremely delayed due to covid. The supply chain was seriously disrupted. My cynical mind wonders whether there will be a greater level of defects for items built during that period.

My restoration build is in the final stages of bodywork, of which I've been posting photos and brief commentary in the build section of this forum. Hopefully the engine and efi installation wil commence in a couple of months.

Keep us updated on your progress!

Nick

Glad to hear you received yours, and like you, I’m worried about the “defect levels” of any foreign made products, too!

Looking forward to hearing how your PF4 install goes!

Woody

[Beach-Burban]

Well, I installed the new MAP Sensor and got the proper readings while connected to the digital gauge screen with the engine off. The engine started right up but ran worse than it had prior to my break-down, however, as I had goofed with the distributor during my time sitting at the curb, the first thing I did when I started it was to return the timing to the required 12 degrees BTDC (as Peter from Edelbrock had instructed me to).

As I dialed-in the timing, the engine ran better and better (in the driveway) but when I actually drove it, it went back to stumbling and popping as before…so I drove about 10 miles then called Peter back instead of driving the entire 50 miles. Peter took me into the “Advanced Tuning” section of the app and told me what initial adjustments to make to the basic Fuel Map. He told me to call him back after another 50 miles…and this time I won’t jump the gun!

The off-idle response is significantly improved, as is the acceleration aspects up to around 40 mph. I didn’t take it on the freeway yet, so I only put about 10 more miles on it as a new (minor) issue has developed…it stalled several times when coming to a stop, unless I rolled very lightly to the stop. I might need to raise my idle slightly, or the slight build up of pressure in the gas tank is dropping my fuel pressure. I need to rectify the venting anyway, just to be sure that this isn’t a problem…but it’s apparent that the “self-learning” needs to have time to make adjustments as well as some more tweaking with the help of Peter.

Woody

[HO455]

Sounds like progress to me. As they say "It's the journey, not the destination". Good work and thanks for posting, we're all learning along with you.