NEW MAP SENOR INFO.

RiderRocketman · Mar 24, 2008

Interesting. I haven't had any problems running without the MAP sensor.

The thing about PCIII telling the ECU that a 2 bar is connected is interesting. I wonder if that is supported in the Rocket's ECU. Your tuner might be thinking about PCIII for a different ECU type. It's mainly interesting because PCIII doesn't communicate with the ECU but just changes signals coming from it to the fuel injection system.

I know there is not an option in Tuneboy to tell the ECU about the MAP sensor.

Keep us posted.

Joker · Mar 24, 2008

brembo said:
I had my bike back at the tuners to get the MAP sensor issue resolved. Well, he still couldn't get the 2 bar sensor tuned in ( I'm told that with a turbo I need a 2 bar). I told him to stop trying, pull the plug and tune the bike without. I picked it up, bike runs fine, no low rpm blurps or high rpm sputter. The only problems that still remain are The bike has gone dead at a light twice (probably to much fuel) in about 50 miles. I have to crack the throttle a bit to get it started when warmed up. And last but not least, as with all that have the MAP sensor disconnected, the check engine light is on.
Possible fix: I've got a new tuner, one that seems to know his ****e. He says that the newer version PCIII's have an option that allows you to tell the ECU when you change from a 1 bar to a 2 bar MAP sensor. He says if you don't tell the ECU to read a 2 bar it will never run right with the 2 bar. If you have tuneboy I'd check to see if this option is avalible when you connect the 2 bar. I'm taking my bike to him this week to see if he can get these problems fixed. I can't wait to get this thing to the drag strip, it's scary fast.

Check with Richard (Blowme) from TTS. I think he said he used a 2 Bar sensor to tune mine, but couldn't get it to run properly with it connected coz there's no way to tell the ECU it's a 2 Bar. He has also removed the sencondries and the stepper motor and associated gubbins (that's how technically knowledgeable I am). This has the result that the tick over has to be set high to allow it to tick over when cold. When cold it ticks over at 700 to 800 RPM but when warm this is about 1100 RPM. Not ideal, but a small price to pay for a bike that pulls cleanly from tick over to red line. The check engine light is on. I keep checking the engine, and it's still there. :lol: :lol:

NEW MAP SENOR INFO.

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