3800 rpm limiter
Thread Starter
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Joined: Jan 2004
Posts: 58
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From: Kansas City, MO
ok i put the boost sensor on and it still revs the same in neutral i havent been able to test drive it for the true test cause i have to put a new diff in this weekend b4 i can do that. i dont think that it fixed it though,
does any one have any other ideas.
i think that the injectors are coming on, just not coming on all the way, is there something that determines this other than the boost sensor, any ideas are welcome im stumped
does any one have any other ideas.
i think that the injectors are coming on, just not coming on all the way, is there something that determines this other than the boost sensor, any ideas are welcome im stumped
Full Member
Joined: May 2002
Posts: 97
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From: Cartersville, Ga
Originally posted by ucrotary
all of the s4 fc3s have ecu that cuts fuel somewhere around 4 to 5 rpm you might want to check rx7.com they have fuel cut chip thing. it's eleminates this problem
all of the s4 fc3s have ecu that cuts fuel somewhere around 4 to 5 rpm you might want to check rx7.com they have fuel cut chip thing. it's eleminates this problem
It doesnt cut off till I redline, and then it starts BUUZZZZZZZZZ
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Joined: Jan 2004
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From: Kansas City, MO
hey this is to aaron cake or any turbo guy, i put my flow meter after the turbo and i think that it should be b4. i just thought of this cause i was looking at some of aaron's pics and noticed that. tell me what u think
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
On a series four TURBO ECU, the ECU will cut the fuel when it sees approx 3.75 volts out of the boost sensor. I think that's somewhere over 7psi (the boost sensor putting out over 3.75 v)/
What are the part numbers you can read on your ECU. Like N332 or N326 or??? And the same for the boost/pressure sensor. N318 or N326???? of something like that.
What are the part numbers you can read on your ECU. Like N332 or N326 or??? And the same for the boost/pressure sensor. N318 or N326???? of something like that.
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
Here: http://www.teamfc3s.org/info/articles/fcd/diy_fcd.htm
But this can be overcome merely by taking off the vac hose to the boost sensor. It'll never put out 3.75 volts that way and the secondarys would have come online.
I'm fairly sure only the turbo ECU have that fuel cut.
But this can be overcome merely by taking off the vac hose to the boost sensor. It'll never put out 3.75 volts that way and the secondarys would have come online.
I'm fairly sure only the turbo ECU have that fuel cut.
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Joined: Jan 2004
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From: Kansas City, MO
ok i got my new turbo on and no smoke but its still cutting out im am completely out of ideas. i sanded down the ground on the intake manifold and replaced the pressure sensor and the resistor pack. i dont know what else it could be, does anyone have any more ideas
Thread Starter
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Joined: Jan 2004
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From: Kansas City, MO
i replaced the 680's with 550's and the cutting out and 3800 changed it cuts out when i floor it now i can half throttle it to redline but if i floor it it cuts out. it almost seems like when i start to boost it cuts out
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