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-   -   Power FC fuel cut issue (https://www.rx7club.com/power-fc-forum-47/fuel-cut-issue-1041236/)

Ruler_Mark 07-20-13 12:19 PM

fuel cut issue
 
Trying to get a pfc on a s4 rx7 work right, have the banzai kit and basemap so doubt its timing related.

Here is what happens, afrs are fine start to rev it up and once it passes 1500(where i have fuel cut set at for idle) it cuts fuel. If I raise said fuel cut setting to 4k it will rev fine to 4k then start fuel cutting.

Have tried a 2nd tps and ohm tested it.

Anyone have this issue before? What are the conditions for the pfc to be in fuelcut?

cewrx7r1 07-20-13 04:13 PM

There is only one fuel cut.

The other 6 values are fuel cut-on or fuel return-on and used when off throttle and the revs drop back to idle..

Check the manual.

Ruler_Mark 07-20-13 08:30 PM

I am referring to the fuel return on value

arghx 07-21-13 08:10 AM

you would have to post Datalogit logs and your map

Ruler_Mark 07-21-13 12:09 PM

1 Attachment(s)
I dont have a log at the moment, the key thing I was watching was injector duty. when it would hit the # I had it set for fuel return on it would drop to 0% then back to 7% once it fell back below the rpm value set.

cewrx7r1 07-21-13 02:02 PM

You need to use a Datalogic and remove the PFC Tuner string on Settings 5 as they suggest and then set the two adjacent IGN values to 0 so they rest to normal.

Verify that you have the dual TPS voltages which will be the same for a FC.

Two 550 injectors as secondarys , not planning on making any power, is that your goal?

Ruler_Mark 07-21-13 06:10 PM

Its the map I have to build from, 850/1600. Will check those settings and report back

Banzai-Racing 07-22-13 06:23 AM

Did you connect the FRT wire to the 3F wire for the S4 TPS?

You have the injectors setup wrong for 850/1680

Ruler_Mark 07-22-13 09:11 AM

Frt is hooked up, I have the injectors value changed on car


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