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Old 11-08-2008, 02:40 PM   #1
roxspin72 [OP] roxspin72 is offline
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Holy shit I need help w/tuning:

OK, so I went and hooked up my LM 2. Wide Band & OBD.

Well, my R4 controller software for my MAF Cali says, can not connect ECU (check power and/or conections). Calibrator has been in for bout a month or more and had no issues, ie.. CEL. So what could it be.

Any info or tips on trouble shooting is welcomed.

Thanks.
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Old 11-08-2008, 02:55 PM   #2
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Is your truck actually throwing a SES light ? if so, I would just attempt to clear the code then attempt to clear it then run the program again and see what you get.
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Old 11-08-2008, 03:46 PM   #3
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Quote:
Originally Posted by Tman View Post
Is your truck actually throwing a SES light ? if so, I would just attempt to clear the code then attempt to clear it then run the program again and see what you get.
No codes. I just went back out to retry. Now the LM-2 is working perfect. It my R4 controller that keeps saying can not connect to ECU.

The LM 2 is fun though. Way more info than a scangauge and you can calibrate your Throttle position sensor among other things.

My AFR is around 13.6 at idle, and between 12.7 & 14.6 during driving normal. Not sure why the fluctuation (Need to study that). The LM 2 even shows my open loop, short term, and long term fuel trims. Which are all used to tune the URD MAF.

If I could just figure why the R4 controller cant connect I would be tuning away
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Old 11-08-2008, 07:48 PM   #4
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Exclamation

OK, cancel this thread Im an idiot. I dont know how I missed this very important detail, but in order to tune your truck, you use a scan tool and wide band sensor. But, that good owe serial to usb cabel that is recommended, well that plugs into the calibrator. I actually have to open the calibrator and plug in.

So I guess I take the dumb ass bullet on this. Lets not have anyone else posting this question in the future, LOL...

Will post results tommorow night.

Laters.
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Old 11-08-2008, 09:08 PM   #5
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Quote:
Originally Posted by roxspin72 View Post
I actually have to open the calibrator and plug in.

So I guess I take the dumb ass bullet on this..
First step, verify all connections. Second step double check all connections.

Glad it worked out for you.
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