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n xntrx volvo
08-12-2005, 12:19 AM
-specs
ms-e
024s9
beta2.25b514
kenny's maps (same inj, 16vt)
-condition
have:
spark,
compression
led 17 (first one) flashes always
d21, d22 and d23 are good
r12, r32 and r17 are good

air
-can get
fuel by manually grounding inj
this will allow the eng to run for a few sec before it dies
at 10.75 ohms total inj resistance, wont trigger
at 2.5ohm (using stock volvo ballast) to 8.75ohm wont turn off (b4 you say anything (3(inj ohm )+7(ballast ohm))/4(paralell)
-changed
ballasts
driver (to nte2389) (the volvo ballasts fried both q2 and q7 by staying on, also changed oil for that reason)

ideas? q1(tip42)? this is very frustrating, been stuck like this for a week.
-Aaron

blkaplan
08-12-2005, 10:24 AM
are you running cfi injectors?

n xntrx volvo
08-12-2005, 02:21 PM
no rx7, 3 ohm
btw board is v2.2
board sch (http://www.bgsoflex.com/v22/megasquirt_ShemV2.2.pdf)

JohnLane
08-15-2005, 06:57 PM
Bad ground?

Bad injector driver?

n xntrx volvo
08-20-2005, 10:41 PM
replaced the driver. they ground good, too good actually. just replaced some more stuff, progress to come (sorry spent a week away from it)