fatnslow
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« Reply #20 on: July 06, 2008, 11:21:26 AM » |
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thanks guys, jason i dont have a mps shifter, i have a knock off. my light didnt start coming on till the turbo was installed, but i never payed it any attention cause i was told that was normal.
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Coryonbusa
Can't Get Right
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« Reply #21 on: July 06, 2008, 11:52:58 AM » |
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it depends on what is causing the issue (fi light)
if it is doing it while setting in the garage then i dont think its the map sensor seeing boost
That's true. |
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'03 Busa, OG Stage 1 Ghetto w/Tony Finley's Secondary Upgrade.
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fatnslow
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« Reply #22 on: July 06, 2008, 12:23:26 PM » |
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cory what kind of goodies you got coming, everybody i talked to the guy who installed the turbo, he told me what to do but i wont say, dont want to piss anybody off.
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OzBooster
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« Reply #23 on: July 06, 2008, 06:41:16 PM » |
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Not unusual to have the light on after a run to redline on boost, should show injector fault codes if this was the case and no real problem,its just the injectors are not fully closing before they are opened again, this causes the ecu to not see the back voltage spike associated with stopping the current to the injector . anything else needs attention ...
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jasonsbusa
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« Reply #24 on: July 06, 2008, 09:27:18 PM » |
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Check the code and let us know what it is  |
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fatnslow
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« Reply #25 on: July 06, 2008, 11:36:06 PM » |
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will do jason just have to figure out what im looking for. |
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brknwng
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« Reply #26 on: February 15, 2009, 02:30:34 PM » |
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New here but, was reading this thread which looks like it's been around for a while. Anyway, my 08 isn't turbofied yet and I have the same problem under hard acceleration.
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Gixer
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« Reply #27 on: June 15, 2010, 08:07:21 AM » |
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Hi.
I also I have such problem.
On my bike lights FI at about 2 PSI, the engine behaves as if it came to the limit.
What to do with MAP sensor?
Thanks a lot!
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« Last Edit: June 15, 2010, 08:09:01 AM by Gixer »
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Chris Horoho
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« Reply #28 on: June 15, 2010, 09:18:18 AM » |
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Put a bleed off style check valve in before the map sensor (the stock map sensor)
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Gixer
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« Reply #29 on: June 15, 2010, 10:07:29 AM » |
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Thank you very much.
The bike finally working, just do this problem is bothering :-)
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Gixer
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« Reply #30 on: June 21, 2010, 02:10:32 AM » |
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Yesterday I installed two check valves before the map sensor.
The first, which only allows the vacuum, and the other behind it, which is used for relieving the MAP sensor and lets the air out.
I have noticed progress, although I feel a little delay in the start and work in small irregular idle.
But It happens to me at a pressure over 7 PSI sometimes turns FI.
I suppose this is due to inertia valve.
Is there anyone with similar experiences and how they were solved?
Thanks a lot!
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OzBooster
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« Reply #31 on: June 21, 2010, 03:15:19 AM » |
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I don't think your map sensor setup will work, just tee both to vent to atmosphere under boost ,and be closed so the map sensor functions normally any other time
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Gixer
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« Reply #32 on: June 22, 2010, 05:20:51 PM » |
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Thank you very much for your reply!
I tried to do as you wrote, but it still appears the same problem, poor work at idle and again FI light to about 7 PSI.
I'll try to get a new check valves because they assume that the problem is.
I need one more tips.
Because of fear of detonation, what the maximum boost to have with my settings (stock piston, stock cams, 0.80 spacer and secondary injectors controlled by Megasquirt)?
Ignition and control of primary injector using stock ECU!!
Thanks
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OzBooster
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« Reply #33 on: June 22, 2010, 06:34:39 PM » |
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Jump the dealer plug and get the code, otherwise your only guessing
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Gixer
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« Reply #34 on: August 13, 2010, 02:59:37 AM » |
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The problem with the MAP sensor and the FI light I chose!
Thanks for your help!
I installed a new adjustable fuel pressure regulator.
When the reduced pressure, the engine loses power (this is normal) but then during the cruise, for example, at a speed of around 60-70 mph, AFR sometimes fall below 10:1.
Only the acceleration increases to around 13,5:1, at about 100 mph is normal, around 13.5 - 14:1.
No matter how you adjust the regulator ritiska fuel, the cruise mixture is very rich, where it could be the problem?
MAP sensor maybe?
Note:
Camshafts have not moved, but I left them at the normal position after I installed a 0.08-inch spacer. Is it possible that this is a reason to back fire, which happens when the engine is running at boost?
Another question,
What should be the pressure in the cylinder (with a 0.08 inch spacer)?
Thank you very much for your help!
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