Missing at very light throttle

Carma · Post by **Carma** » Thu Nov 20, 2008 4:09 pm

This car is having problems at very light throttle(under 10%), under 3000 rpms and thats the only place this happens. You can see it in the log and watch it happen live. The injectors are shutting off and coming back on. I've tried several different things but have had no luck so I thought I'd try posting a datalog of while its happening on here to see if anyone has some input.

Type S K20 swapped into a 99 Civic Ex
HKS turbo kit
440cc injectors

Everywhere else the car runs fine, its just cutting the injectors off at random for some strange reason. Thanks for taking a look.

Post by **Hondata** » Fri Nov 21, 2008 8:38 am

Under advanced set the overrun cutoff to 18 for the low cam. Switch on closed loop.

Can you post the datalog as a .kdl?

Carma · Post by **Carma** » Fri Nov 21, 2008 9:48 am

Already tried messing with the overrun stuff, no success. I'm not on the computer with that file on it but will be shortly and can post that then.

h2nrtl · Post by **h2nrtl** » Sun Nov 23, 2008 1:22 am

we have a car with the same problem

dcloo · Post by **dcloo** » Mon Nov 24, 2008 11:45 am

if the value was less means the shorter time cut off?
how about high cam rev?

Carma · Post by **Carma** » Wed Dec 03, 2008 1:44 pm

I've been trying all sorts of stuff to see if I can track down what exactly is causing this problem. Nothing is working. Here is another datalog and another map that I've tried. It does it with both .kal files.

Post by **Spunkster** » Thu Dec 04, 2008 4:43 pm

Whay does your TPS read only 6% but never any lower?

cranny · Post by **cranny** » Thu Dec 04, 2008 9:26 pm

haha , id say thats a problem spunkster. maybe he just needs to adjust it to .5 volts at idle , 4.5 at wot. might clean it up a ittle. after that he can read from it and set min and max. or maybe he can just set min and max and fix that idk. id set it at the sensor first if it was me.

Carma · Post by **Carma** » Mon Dec 08, 2008 9:40 am

Thats because I was on the throttle 6% at that point... You think the car is gonna run at ~3000rpms/40kpa in 4th gear with the throttle closed? TPS reads zero when you're not on the gas.

Carma · Post by **Carma** » Wed Dec 10, 2008 12:39 pm

Anybody? I've talked to the nearest hondata dealer and he told me I needed to post on here. So....

Post by **Spunkster** » Wed Dec 10, 2008 1:48 pm

With the key on but the engine not running what does the TPS read with your foot off the gas? What does it read with the gas pedal all the way on the floor?

Carma · Post by **Carma** » Wed Dec 10, 2008 2:51 pm

Exactly as it should... 0 off the gas and 100 when its to the floor.

Post by **Spunkster** » Thu Dec 11, 2008 10:23 am

uncheck the box for disable overrun cutoff