Edelbrock E-force Owner's thread and FAQs (Frequently Asked Questions)

[Jaunt86]

Originally Posted by Gloonge

Check around and make sure you don't have any fuel leaks and that you didn't install the Mas airflow backwards.

Plug should be toward the driver side.

MAS looks right

The bottom of the fuel banjo bolt is damp. No pooling or noticeable drips.

[Gloonge]

Originally Posted by Jaunt86

MAS looks right



The bottom of the fuel banjo bolt is damp. No pooling or noticeable drips.

This a brand new unit or second hand? Peek around by the injectors and did you secure all 3 bolts for the computer on the passenger side head?

[Jaunt86]

Originally Posted by Gloonge

This a brand new unit or second hand? Peek around by the injectors and did you secure all 3 bolts for the computer on the passenger side head?

Brand new... Sorta, been sitting around for 18 months waiting on me.

It threw a lean bank code after I let it warm up. I reset the code and now it won’t fire again. Not even a hint of it this time.

Everything seems tight on the passenger side. I’ll have to remove the ECU to check the injector bolts, though it seems tight, no play.

[Gloonge]

Originally Posted by Jaunt86

Brand new... Sorta, been sitting around for 18 months waiting on me.



It threw a lean bank code after I let it warm up. I reset the code and now it won’t fire again. Not even a hint of it this time.



Everything seems tight on the passenger side. I’ll have to remove the ECU to check the injector bolts, though it seems tight, no play.

For shits and giggle see what your boost reading with just the ignition turned on. You might have a bad map sensor.

[Jaunt86]

Originally Posted by Gloonge

For shits and giggle see what your boost reading with just the ignition turned on. You might have a bad map sensor.

MAF is 1.2 when just sitting here and jumps between 2-3 when cranking.

[Gloonge]

Yea that's likely gonna be the issue. Are you using edelbrocks tune or custom? I had the same problem when I installed mine. The map had to be scaled to where resting was closer to zero (mine is .33)

[Jaunt86]

Originally Posted by Gloonge

Yea that's likely gonna be the issue. Are you using edelbrocks tune or custom? I had the same problem when I installed mine. The map had to be scaled to where resting was closer to zero (mine is .33)

Custom tune.


So it’s a bad sensor? The one on the intake?

There are two, right? One (original) on the intake and one supplied by edlebrock on the super charger.

[Gloonge]

Originally Posted by Jaunt86

Custom tune.





So it’s a bad sensor? The one on the intake?



There are two, right? One (original) on the intake and one supplied by edlebrock on the super charger.

No sorry I mis spoke. I assumed you were using the edelbrock. Send the info over to your tuner and they should be able to scale it to a more appropriate level so you can get it started.

[Jaunt86]

Originally Posted by Gloonge

No sorry I mis spoke. I assumed you were using the edelbrock. Send the info over to your tuner and they should be able to scale it to a more appropriate level so you can get it started.

Thanks for your help. I captured data when it was running and not, so we should have what we need.

I’ll update next week.

[aKaGorganZola]

Originally Posted by Jaunt86

MAF is 1.2 when just sitting here and jumps between 2-3 when cranking.

So you'll want to look at the MAP reading and compare to your atmospheric pressure. Depending on elevation you should be seeing right around 1 bar with the engine off. If the MAP has a different reading than that, it will definitely cause an issue. I had a similar issue but it was just dumping fuel because my MAP was seeing 2.5bar because of a cut wire in the harness.

[Jaunt86]

Originally Posted by aKaGorganZola

So you'll want to look at the MAP reading and compare to your atmospheric pressure. Depending on elevation you should be seeing right around 1 bar with the engine off. If the MAP has a different reading than that, it will definitely cause an issue. I had a similar issue but it was just dumping fuel because my MAP was seeing 2.5bar because of a cut wire in the harness.

I’m seeing 6.24 psi, so not even .5 bar

[aKaGorganZola]

Originally Posted by Jaunt86

I’m seeing 6.24 psi, so not even .5 bar

The importance thing is that they're the same. If they are I'd say the sensor is fine.

[Smaay]

Im sorry I keep coming into this thread at random times. Can someone please educate me on how the bypass works or whats its job is? Im not new to the FI world, And I understand how the bypass functions.

under vacuum the actuator pulls the bypass valve open allowing air to go around the SC? WHY?

Then when on throttlw, there is no vacuum, the bypass is spring loaded so it should close on its own?

When these bypass valves fail, the Vacuum cant hold the valve open? and it leaks?

When under full boost it sounds like the bypass valve is open, how is that possible? if its under spring tension? What is causing the P0171 codes? its all metered air going in so whats making the lean condition?

[B T]

Originally Posted by Smaay

under vacuum the actuator pulls the bypass valve open allowing air to go around the SC? WHY?

So you're cylinders aren't starved of air. It's like having the car operate on a non FI basis while at light throttle. Air recirculates through the supercharger while letting the throttle body do all the idle control.

Originally Posted by Smaay

Then when on throttlw, there is no vacuum, the bypass is spring loaded so it should close on its own?

That's right, it closes when there is adequate air volume to meet demand on the intake runner side of the supercharger.

Originally Posted by Smaay

When these bypass valves fail, the Vacuum cant hold the valve open? and it leaks?

When the bpv fails, it will no longer open at high vacuum conditions.

Originally Posted by Smaay

When under full boost it sounds like the bypass valve is open, how is that possible? if its under spring tension? What is causing the P0171 codes? its all metered air going in so whats making the lean condition?

Under boost, there is no longer a vacuum, so the bpv closes.