What do I need to do to find injector duty cycle? I know its something eay and I thoiught I read it on here but couldnt find it with the search.
What do I need to do to find injector duty cycle? I know its something eay and I thoiught I read it on here but couldnt find it with the search.
If you have an F or Y car, select the following pids:
IBPW1
IBPW2
INJDC1
INJDC2
That will give me my duty cycle or will I have to make a map of some sort?
From EFILive Scan PID under More INFO
GM.INJPW1 = Injector base pulse width - bank 1
Units: ms
Range: 0..999.9 ms
The injector base pulse width is the number of milliseconds (thousandths of seconds) for which the injectors are commanded open by the PCM.CALC.INJDC1 = Injector Duty Cycle Bank 1
Expression:
% = {GM.IBPW1}*{SAE.RPM}/1200
You need to scan INJPW1 and/or INJPW2 and from that info the Duty Cycle is calculated from that info.
Chassis by Holden
Engine by Chev
PCM modified by Flashscan
Cam by Comp Cams
The INJDC1 and INJDC2 pids can be plotted on a log chart and can be displayed on a guage.Originally Posted by minytrker
You don't need to make a map, unless you want to see how the duty cycle trends wrt to (say for example) RPM and DYNAIR.
01 Z28 - LT headers, CATS!, EGR!, Ported TB, TB bypass,CAI,Elec Cutout
79 Camaro - 383 SBC, VicJR HiRise with1.5"spacer, 3000 stall, TH350, 2.05/1.60 Valved DHump heads, LTs, Holley 850 DP, Holley Blue.
C5 underway now- 408 Stroker, Ported DirectPort FAST 92/90, 1 7/8" LTs, 25%UD Pulley, 42lbers,Tex T-56...
www.ssdungeon.shutterfly.com
On the PIDs tab, un-check Supported, then click on the Caption column heading once or twice, this sorts alphabetically by this column, then scroll down until you see those pids.