Holley HP EFI no start

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Jan 1, 2015 | 09:16 PM

BUDGETRAT

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Holley HP EFI no start

Need help figuring out why I have no spark on 09 6.0. I'm new to the Holley EFI. I've checked all grounds and swapped crank sensors but it shows no rpm when cranking. It has shown it a split second a couple times but generally when cranking it shows syncing. I have latest firmware in ECM and have tried different tunes just to see if it changed anything. Also I have the LS2 harness and setup for 58x crank. Thanks for any help

Jan 1, 2015 | 09:55 PM

Hi-Po

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From: Florida

Start here.
http://forums.holley.com/showthread....ist-Holley-EFI

Jan 1, 2015 | 09:58 PM

Beanslsxnova

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From: waldorf,md

Have you done the tps autoset. It will not fire or signal the injectors untill you set up the tps

Jan 1, 2015 | 10:21 PM

BUDGETRAT

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Quote:

Originally Posted by Hi-Po

Start here.
http://forums.holley.com/showthread....ist-Holley-EFI

Thanks I will check all these

Jan 1, 2015 | 10:21 PM

BUDGETRAT

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Quote:

Originally Posted by Beanslsxnova

Have you done the tps autoset. It will not fire or signal the injectors untill you set up the tps

Yes I did do this Thanks

Jan 2, 2015 | 05:52 AM

forcd ind

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From: woodbine, md

When you first turn the ign on, do you get all sensors sync.
what tune up did you load
as said, TPS autoset
go back thru all your settings, double ck they match your engine

Jan 2, 2015 | 06:04 AM

Hellhaunter

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From: OKC, Ok

i would check the harness to see if it's wired correctly ,the diagram is in the manual or on Holleys site
i have read some posts that holley have had faulty connectors.

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Jan 2, 2015 | 08:40 AM

BUDGETRAT

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Quote:

Originally Posted by samdogmx

It has to see a valad RPM when cranking.

Check the crank sensor, make sure its the correct one for 58x, check the harness, check you have it set right in ignition parameters.

Its the gray (58x) crank sensor I swapped it with another known good one and tune is set on 58x Thanks I'll ck connector tonight. I don't think your to far from me I'm about 50mi west of STL.

Jan 2, 2015 | 08:51 AM

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BUDGETRAT

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The two time it did show rpm for a second I had just got done syncing ECM not sure if that was coincidence or not

Jan 2, 2015 | 09:01 AM

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samdogmx

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From: Alton, IL

Id start by double checking the wires where they go into the plug at the crank sensor, make sure nothing is loose, then OHM each wire from the crank plug back to the main connector on the holley.

Jan 2, 2015 | 12:41 PM

#12

BUDGETRAT

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Quote:

Originally Posted by samdogmx

Id start by double checking the wires where they go into the plug at the crank sensor, make sure nothing is loose, then OHM each wire from the crank plug back to the main connector on the holley.

ok I'll do that tonight. Thanks again!!

Jan 2, 2015 | 02:14 PM

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toytech93

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From: wilson,nc

Does the system prime the fuel pump when you first turn the key on ?

Check to make sure the red wire for the engine harness has power while key-on/engine cranking. Most lose power while cranking.

Jan 2, 2015 | 03:47 PM

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BUDGETRAT

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Quote:

Originally Posted by toytech93

Does the system prime the fuel pump when you first turn the key on ?

Check to make sure the red wire for the engine harness has power while key-on/engine cranking. Most lose power while cranking.

It does prime I'll double ck red wire though