Fuel Cut
June-14th-2003, 04:50 AM
#1
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Join Date: Apr 2003
Location: nj
Posts: 33
Fuel Cut
Hello all, If some one would help me on a matter i would appreciate it.
Does anyone know about the fuel cut for the 89 probe/626/mx6?
What controls it and can it be bypassed?
Is it controled by the VAF or other sensor(s)?
Any info would help. Thank you in adavnce
Does anyone know about the fuel cut for the 89 probe/626/mx6?
What controls it and can it be bypassed?
Is it controled by the VAF or other sensor(s)?
Any info would help. Thank you in adavnce
June-14th-2003, 10:26 PM
#2
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Join Date: Apr 2003
Location: nj
Posts: 33
Originally posted by 90&00 Protege
As in your rev limiter? It's a function of RPM and the ECU...so there's no way around it unless you change your ECU....to say a SDS or TEC system.
As in your rev limiter? It's a function of RPM and the ECU...so there's no way around it unless you change your ECU....to say a SDS or TEC system.
what controls it?
the VAF or a series of sensor inputs for the ecu?
June-16th-2003, 02:19 PM
#3
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Join Date: Jun 2002
Posts: 20
Fuel Cut
If you are talking about the "Top Speed" limiter (about 130 mph), on the '89 MX-6, it is actually built into the speedometer! When the needle gets to a 130, it closes a contact and turns off the ECU. Very primitive.
The earlier ('88) Turbo cars did not have the limiter, and I did remove this limiter on a '89 MX-6 back during this time.
A long time ago in a place far far away.
The earlier ('88) Turbo cars did not have the limiter, and I did remove this limiter on a '89 MX-6 back during this time.
A long time ago in a place far far away.
June-17th-2003, 11:52 AM
#5
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Join Date: Jun 2002
Posts: 20
Boost Cut
My memory tells me it was a calculation done by the ECU, based upon RPM and Airflow readings. I could be wrong, because I had to be careful with boost readings. They could not go over 10 PSI for the class I was racing so the boost cut was not a real factor.
We got some amazing power out of this engine, at modest boost levels. The best I remember seeing was 225 hp and 280 ft lbs of torque. This was all done through a cat too, with "stock" everything.
We got some amazing power out of this engine, at modest boost levels. The best I remember seeing was 225 hp and 280 ft lbs of torque. This was all done through a cat too, with "stock" everything.
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