5ktq electrical problems update (not fixed)

[Ameer Antar]

You're probably right that there's not much difference in draw between 37 and 41-lb. injectors. I guess there might be a larger solenoid in the bigger injectors, which would increase the draw, but probably are almost the same. Injectors are just small solenoids (or coils w/ mechanical plunger). This actually draws quite a bit of current, b/c at hold, the solenoids act like a short circuit (well not quite, if it weren't for the inline resistance). Also the peak stage draws lots of power too. The original CIS ECU's used very little current since they only had to handle a few solenoids like the freq. valve and wastegate valve w/ far less stress compared to injecrors. Basically, I just think the original ECU power lines (both pos. and neg. (unless the ECU has a ground point)) may not be enough to handle the new EFI ECU's.

-Ameer

---Original Message---
From: Robert Myers <robert at s-cars.org>
Date: 9/24/03 5:32:22 AM
Subject: Re: 5ktq electrical problems update (not fixed)


 The injectors are simply electrically switched valves attached to spray nozzles.They don't require electricity except to turn them on and then hold them open until time to close the valve.Unless I'm missing something obvious, that impulse shouldn't be significantly larger for higher flow injectors than for stock injectors.I certainly hope not anyway.I have a set of 37 pound per hour injectors sitting on my bench just waiting to go in in a few days.

 Bob
 *****
Robert L. Myers 304-574-2372
Rt. 4, Box 57, Fayetteville, WV 25840 USA WV tag Q SHIP
'95 urS6 Cashmere Grey - der WunderwagenICQ 22170244
http://www.cob-net.org/church/pvcob.htm
 *****