Boost Issue

[02DodgeCummins]

Before I installed a used Quadzilla Adrenaline I could get boost at around 1500 to 1700 rpm is when you could really notice it. After install and using a stock race or tow tune I have nothing until I’m over 2200 rpm. I like to shift at 2k with my 6 speed. The IQuad app is showing no boost. My pillar gauge says it’s there. My question is do I have to adjust the tune and how would I go about doing so?

[Threadzy]

Any mods? What are the parameters of your tune? 

[02DodgeCummins]

It’s an 2002 6 speed with a 2000 S/O swapped in. Has the H/O VP on the standard ECM. Silencer ring was taken out,  has s&b intake, and fast 100 lift pump with sump. Everything else is stock. As far as tune I’m just running me78569 tunes.

Edited July 13, 2021 by 02DodgeCummins

[Threadzy]

Can you post your tune? Did you see the Quad working properly on the truck you bought it from? You may need to send it to Quadzilla to be fixed. Is the map sensor plug snapped it properly from the Quad?

[Silverwolf2691]

Might have to pull the timing down. Some of the tunes were created before we figured out how low we can push timing.

 

10 hours ago, 02DodgeCummins said:

It’s an 2002 6 speed with a 2000 S/O swapped in. Has the H/O VP on the standard ECM.

 

So you have a S.O. engine with an H.O. vp44 on it correct?

 

I've heard of issues going that direction, but then why does the other direction work? (H.O. pump to S.O.)

Just things I've read from forums dated like 2008.. 

 

If it was a used quad, is it updated to V2? Otherwise it causes issues..

 

But like @Threadzy said, you might need to call Quadzilla to get it looked at, but double check all of your connections first. Free fixes are the best fixes.

[Mopar1973Man]

More you retard timing the better it will build boost. Too many people are too concerned with getting enough advancement. This why I suggest starting 1,500 RPM band at 13 degrees. Then if you  have enough timing reduct it should be able to pull down to 10 to 11 degree on a heavy throttle or WOT. Once boost build it step back into advancement and continue to build power. 

 

With 15 degree in the 1,500 RPM band you might notice with cruise timing running and light throttle it might buck at lower speeds 30 to 40 MPH. The 13 degree at 1,500 RPM will reduce that chance of bucking as well. 

[Me78569]

Does the iquad app ever show boost? 

 

That's a REALLY important question before messing with anything in the tune.

[02DodgeCummins]

I’ve been supper busy lately and haven’t had time to get on. No the iQuad is not showing any boost. I got a new pig tail for that. If that doesn’t work I’m gonna send it in to have it tested. I attached photos of how it’s set up now.

[Me78569]

If the quad shows no boost ever then that is your issue, the quad fuels %100 on boost reference.  

[02DodgeCummins]

I got a new pig tail for the map sensor. I will see if that changes anything this weekend. I appreciate all the help and info.

[Mopar1973Man]

Best to test the MAP plug to the ECM plug. Ohm out the wires and verify the the wire are not broke first.