Engine "Sputtering" and Sluggish?!

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Oct 31, 2015 | 04:22 PM

KevinD92

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Burning Brakes

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From: Philadelphia PA

Engine "Sputtering" and Sluggish?!

So I have an 08 LS3 with ECS 2200, blower cam, ARH catted long tubes, and Meth. It started out with the "sputtering" or choppy sound when accelerating periodically. It would come and go for about a week. Now, it's always there and the car feels very sluggish. There is no CEL and I've even checked for codes, but there are none. I've cleaned the MAF and throttle body, made sure the intake filter was secure, and changes the engine oil. What's going on?

Oct 31, 2015 | 05:49 PM

KevinD92

Thread Starter

Burning Brakes

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From: Philadelphia PA

I just removed each plug wire (AC Delco) and measured with a multimeter. They all measured right around 800 ohms.

Oct 31, 2015 | 06:59 PM

schpenxel

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From: Raleigh, NC

St. Jude Donor '15

Responded in the other thread, but you need to not be driving it hard until you figure out what's going on.

It needs to be logged, preferably with a wideband installed, to try to get an idea what's going on.

Plugged cats? Fuel pump?

Oct 31, 2015 | 09:56 PM

KevinD92

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Burning Brakes

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From: Philadelphia PA

Yeah I haven't been close to hard on it since it started happening.

Oct 31, 2015 | 10:03 PM

schpenxel

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From: Raleigh, NC

St. Jude Donor '15

Stock engine or no?

Nov 1, 2015 | 09:52 AM

KevinD92

Thread Starter

Burning Brakes

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From: Philadelphia PA

Only engine mod is an ECS small blower cam

Nov 2, 2015 | 11:42 AM

KevinD92

Thread Starter

Burning Brakes

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From: Philadelphia PA

I'm going to check the cats tomorrow

Nov 2, 2015 | 04:32 PM

blkbrd69

Drifting

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From: Orlando FL

Check with your tuner. I would lay odds as you have a cam the misfire codes are turned off so they don't log.

Can turn back on and see if it records.

Check the wires very well, I had one arching to a header and it didn't show as a code and even though wire looked like crap it tested good with a meter.