No start issue Holley HP EFI
 

Ok I've been fighting a no start issue on our radial tire heads up car. I got the car out a few weeks ago had it running then decided to do a firmware update. Did that it said it was successful did a tps autoset and had no tach reading just read (0). Would crank but showed nothing. Messed around tried a few different things no luck. A friend of mine borrowed me his Holley ECM just to see if we had a ECM issue. Hooked that up downloaded his software to the laptop loaded my tune file. Now it was showing syncing on the tach and would flash a RPM reading usually in the 800+ range then say error then the sequence repeats itself. I have tried creating a new tune file with the same results along with trying a known working cam sensor and a working crank sensor. Thinking maybe we had a bad sensor. Still keeps showing the same pattern. Pulled the intake last night so I could get at the harness better so tonight or tomorrow can try to ohm the sensors and plugs along with going over the grounds. Would do a system log but I cannot get it to do that either whether I try it as an immediate or triggered using oil pressure. Still keeps ending up with no downloadable logs. I'm obviously missing something that is staring me in the face but can't seem to find it.

Rick Ryan

Re: No start issue Holley HP EFI
 

Hi Rick
You need to get a hold of Robin Lawrence. Just off hand I would put the program over in "no cam sensor" so as to be in bank to bank or something other than sequential. That will take a bad cam sensor out of the equation.And make sure somehow during the transfers your Crank Sensor in your Ignition Parameters did not get changed to the wrong values. I'm assuming your using one pulse one fire. The Holley uses the same ground circuit for several of the important sensors and if one (sensor) goes wacky it can cause all kinds of goofy problems.

Re: No start issue Holley HP EFI
 

Thanks Jeff.
Yeah I did double check to make sure everything was still set up for 24x just to be certain. I'll double check grounds and ohm everything over the weekend. If nothing else I will try what you suggested and switch it over to a bank to bank and try it. If all else fails I'll see if I can get a hold of Robin somehow.

Re: No start issue Holley HP EFI
 

I have had a similar problem on two occasions. Both times it was the starter going bad. It would turn over, but not quite fast enough to properly sync. Everything else checked good.

I found it the first time by disconnecting the injectors and removing the plugs. After that it would sync. perfectly.

I think Robin had it happen to him when he had my 2014 COPO.

No guarantee this is your issue, but worth a look.

Re: No start issue Holley HP EFI
 

Robin comes on here a good bit. I'll send him a text.

Re: No start issue Holley HP EFI
 

Hey I'm up for just about any suggestion at this point. I'll double check the grounds and make sure everything is clean then put it back together and give this a try. Worth a shot if nothing else to eliminate another variable. Thanks.

Rick

Re: No start issue Holley HP EFI
 

Well tried a new a starter and battery. It definitely cranks faster but same result

Re: No start issue Holley HP EFI
 

Do you have any add on devices plugged into your harness?

Re: No start issue Holley HP EFI
 

No sir. Nothing extra wired into the harness.

Re: No start issue Holley HP EFI
 

The only other thing that I have had happen was the crank signal wire getting pinched between the starter and the block.

Re: No start issue Holley HP EFI
 

I have helped people having that issue.
You might try squirting some gasoline into
The throttle body (Just open the throttle to squirt
some in, before cranking it)If that helps, you need
to go to the Cranking Injector Pulse Width table, and scale
It up something like ten percent. Save that file with another name,
In case it was no better.

Re: No start issue Holley HP EFI
 

Might also, first, look at the indicated Coolant Temp on your laptop, Holley cal opened up, key on, engine off. If squirting fuel injector helps, verify the Holley ECU is seeing the engine correct coolant temp. If reading very hot, it will normally get less cranking fuel.

Re: No start issue Holley HP EFI
 

It is reading right about ambient for coolant temp which would be correct since it isn't actually firing. So that part is ok. I'll give the fuel deal a shot though.

Re: No start issue Holley HP EFI
 

That will only help if you have spark.......

Re: No start issue Holley HP EFI
 

You would expect that to be checked first, right?

Re: No start issue Holley HP EFI
 

It is possible the firm wear update has a glitch.

Anytime you make a change in the Holley you should do a TPS autoset for the Holley to activate the injectors and coils to fire.

8. Plug in the USB cable to the ECU and Laptop. At this time, communication status should change from “Offline” to “USB Link”.
Next, turn the vehicle’s ignition power to “run” (not start). Click the “USB Link” once. A screen should appear that will compare the
files in the ECU with the file in your laptop. They will not be the same. You want to select the “Send To ECU” button at the bottom
of this screen. This will send the new file you created to the ECU.
9. Once this is done, leave the ignition powered. At the top of the screen, select the arrow on the “Sync” button. Select the “Perform
TPS Autoset” function. It will guide you through steps to set the TPS. Slowly depress the throttle from closed to fully open twice.

SYNC button
NOTE: IF YOU DO NOT PERFORM A TPS AUTOSET, THE ECU WILL NOT FIRE THE INJECTORS OR THE IGNITION AND THE
CAR WILL NOT START! IF THE TPS IS NOT SET, YOU WILL SEE A WARNING AT THE TOP OF THE SYNC SCREEN
AND THE TPS WILL SAY “NEEDCAL” ON THE MONITOR SCREEN.
NOTE: ANY time you adjust the throttle linkage (in the future), you must perform a “TPS Autoset” after adjusting the linkage.
10. Shut the ignition off. Turn the ignition back on (do not start). You should hear the fuel pump start and stop after about 5 seconds.
If you do not, diagnose problem.

Re: No start issue Holley HP EFI
 

Dang. That is good info if it is what is causing his issue and it makes appreciate my FAST XFI even more.

Re: No start issue Holley HP EFI
 

Yep have done the tps auto reset on numerous occasions on this deal. Spoke some with Robin Lawrence and he is leaning towards an issue in the firmware install and wants me to try to redo the firmware update several times as he's seen several issues like this. If it doesn't take then it will get shipped off to him for a go. Makes a guy appreciate a good carb sometimes. Lol

Re: No start issue Holley HP EFI
 

Best fix I found. Ended up giving my Holley system away.

Re: No start issue Holley HP EFI
 

What did you go to ? V4 up to V5?

Re: No start issue Holley HP EFI
 

Yeah originally went from v4 to v5. Wish I'd have left it alone.

Re: No start issue Holley HP EFI
 

They have sold over 40 thousand of those units Ed. When we went to their school, Boburka, Fagnoli and myself were the only drag racers in the entire class. 21 students. People are putting those things in dune buggies, swamp and jet boats, motorcycles, off shore cigarette boats,and most of all, hot rod 9 and 10 second street cars ! They don't have much problems with them. Almost always it's a installation mistake, lack of knowledge setting them up and programming them..

Re: No start issue Holley HP EFI
 

They are a good system and so is BS3, but I cannot stand the complications that some of these systems exhibit when making changes vs. the FAST XFI we use in all our stuff. We don't have a lot of time to test our stuff and haven't used a dyno in over 10 years. It is imperative that we know if a change actually helped or hurt. Our only feedback is down the track and those are pretty rare.

I cannot remember the last time we made a change on a FAST that it didn't take and we immediately knew if it helped or hurt. We aren't the brightest guys around so the last thing we need is a bunch of noise in our heads worrying if the computer actually made the change to the ECU. That noise interferes with our driving. I can tell you firsthand for me and I think my dad will agree that we can drive better if we aren't thinking about the car's function.

Everyone has their preferences on ECU manufacturer and how they tune. Even David Page at FAST doesn't agree with the way I tune our stuff, but we run ok.

Re: No start issue Holley HP EFI
 

I've really had absolutely zero issues with this for 3 years up until this one so I can't complain. It's a little frustrating when it says the firmware update was successful but then the car no longer runs like it had for the prior 3 years. But for a guy that was an absolute EFI newbie when I put this car together I love the simplicity of the tuning software and now getting into the custom secondary maps for different things. It's managed to take a stock rotating assembly 6.0 ls and run 3 seasons without issue in a street car that has been 8.30's and cruises around town. Whatever this issue is it's something that I'm sure is staring me in the face and I'm just looking past it. If nothing else I'm certain Robin will get it figured out when I can't.

With that said. I'd love to spend some time with a Fast system just for comparisons sake.
Rick

Re: No start issue Holley HP EFI
 

Holley recommends wins xp for operating the older 950 commanders, does anyone know if or tried a later version of wins to successfully tune the 950's?

Thanks