ECU Problems

**ieatsushi69** · 04-19-2013, 10:04 PM

So I installed my injectors 720cc and jester walked me threw a few steps to tune the car thank you mate!

Once the car warmed up It started stuttering and slugish and will jerk. I get a loud kluncking noise at low rpms while driving it. Will go away once I give it gas.
I am also unable to accelerate very fast in fact im a old lady the rate it moves.. WOT not happening car will throw me into the window from that jerk... I feel very unsafe at this moment I don't even wanna data log it afraid I might blow engine...

It also loses idle goes from 625-680 to 450-500... bad ju ju

**ChargerX3** · 04-19-2013, 10:32 PM

I would contact Jester again and have him help you fix the issue. Its likely something simple.

**Greg E** · 04-20-2013, 10:47 AM

You need to raise fuel cut if you're going WOT.

Can you take a log of the car idling? I need to see RPM, coolant temp, TPS, front and read O2s. Post it here.

After that unplug the O2s and see if that clears everything up.

Wouldn't be surprised if you got the same issue as this guy:
http://www.3sgto.org/tuning-engine-e...flash-ecu.html

**ieatsushi69** · 04-20-2013, 02:59 PM

Ithink I do have the same issue. now to figure how to post a log.

**Greg E** · 04-20-2013, 03:04 PM

How did the car run before the ECU swap?

**ieatsushi69** · 04-20-2013, 03:05 PM

my email is ieatsushi69@hotmail.com what is yours I can send log that way.

**ieatsushi69** · 04-20-2013, 03:06 PM

car ran just fine. Other than sputtered a little bit. I think I have a massive boost leak as well I can't build boost yet I am... weird..

Car engine was just rebuilt only 800 miles on it. Now after ecu swap and injectors upgrade to 720cc it drives like shit. I am scared to drive my car honestly...