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Hi I have a 2002 Buick Rendezvous AWD with a 3.4l
DCW5 engine and was wondering if I can replace it with a 3.4l DCW8 from a 2004 Impala. Will it mate with the trans? Does anything have to be...

Ok Ill try that and post another log tomorrow of what is happening

The wiring is also new. Had a complete wiring harness made.

The plugs are ngk platinum

So should I put the 2012 values back in place where they were in the negatives at the higher airmass? I'm running 87 octane, the ign. wires are new and have heat sleeves to protect them from the...

Ok so I copied the tune for the 2012 Silverado which is the same as what I had and it caused the same issue. So I reinstalled the previous tune and made the hi octane and low octane tables the same...

What does the spark adder do exactly? Im very new to tuning and knowing exactly what to change.

No pinging, no dtc's and yes the injectors are original to the engine which I believe is a 2008 but the ecm is programmed for a 2011

I've made a few changes with the low/high octane tables and still get KR. But I noticed when I accel from a stop that is when the KR happens, and while theres a KR reading on the screen if I release...

I made some adjustments to the low octane table and it's a lot better. It still has some KR but not like it did before.

Here is an updated log file I just recorded with the burst knock and knock retard recorded.

The current MAP sensor is for a 2012 5.3l. I still have to check fuel press. And the injectors are stock to the engine, thats another thing I was wondering about being an issue. Is there a way to...

I was wondering if someone would have an idea what is causing my timing to retard -10 degrees no knock when the engine is hot accelerating from a stop. If I accel very slowly it is not as noticeable...

I couldn't find a factory box for this engine so I bought the aftermarket pipe that has the filter in engine compartment behind the left headlight.
I added a new temp sensor and mounted it low near...

The timing only retards to -10 on hot days stuck in traffic when acceling from a complete stop. When the engine is cool it runs excellent but I had noticed the intake air temp climbs to 145-150deg in...

Hi I was wondering if I could run a seperate air intake temp sensor instead of the one in the maf sensor. I installed a "cold air intake"
which only draws in the hot engine bay air but also gets the...

Is there a difference between a MAP sensor from a 98 vortec 5.7l and a 2011 5.3l?

Anybody?

Can anyone help?

This is the file the ECM came with.

Hi I am very new to this and any help would be appreciated,
I have a 98 Suburban that I installed a gen4 drive by wire 5.3l into using the stock 4l60E that was in the 98 Suburban. I had a...

What would cause a map sensor to read higher barometric pressure? Gen 4 5.3l swap old and new sensor read 17.8psi KOEO.

Hi I am very new to this and any help would be appreciated
I have a 98 Suburban that I installed a gen4 drive by wire 5.3l into using the stock 4l60E that was in the 98 Suburban. I had a...