Steve40th

Just curious what range you all are seeing in respect to injector pulse widths from idle to WOT with your LTx engines using TTS Datamaster( my old DIACOM read the same).But I have seen up to 20MS for WOT by others in other forums etc.
Mine are 2ms to 10ms with duty cycle 90% atWOT and 12.8to 1AFR with Wideband O2'
Mines 396LT1 w/SVO 30#'s 230/236 Comp Cams etc etc

TurboBob

iTrader: (1)

post some pulsewidth, dutycycle%, and RPM numbers.

A lot of tools report pulsewidth that is half of actual. I haven't used either diacom or datamaster in quite a while.

At 5000RPM, 24ms is 100%

Bob

Steve40th

idle 2ms, WOT 10-11ms, TTS Datamaster with 90% duty cycle and O2's hovering around 900mv.

TurboBob

iTrader: (1)

sounds like Datamaster is reporting pulsewidth at half of actual.

Bob

Steve40th

Interesting, so my idle is twice from what it shows? Ouch. idles fine though.
Diacom shows the same. I wonder if it is because of batchfire system, as 94 went to sequential?

TurboBob

iTrader: (1)

what year is your car? if its a 93 (batchfire) then what you are seeing is correct.

Steve40th

Thanks, just to clarify, my pulses are actually 2 ms at idle and 10 ms at WOT? And not half of what they would be if it were not for the batch fire system?

TurboBob

iTrader: (1)

yes, you are correct