My Sw20 Mr2

[showgunkid]

My 1990 mr2 had it runing when it just cut out dose not have any spark seems to have power to the coil pack and control box but no spark any one else had this and could bring some light to this

Sent from my iPhone using Toyota OC

[leesw20]

the ignitor has prob gone (the box that the king lead goes onto) check for spark at that lead

[showgunkid]

Hi there iv tryed that and nothing I'm guessing it due to wireing everything else is brand new but still nothing

Sent from my iPhone using Toyota OC

[leesw20]

Even if there is power going into the ignitor it doesn't mean it's working there needs to be a certain voltage reading on it I can't remember off hand what it is though. Check that the ignitor is properly bolted on tooas it earths off the chassis

[leesw20]

The ignitor has 5 wires (pins) and are labeled as follows



Pin 1 = IGf (white w/ red stripe wire)

Pin 2 = IGt (solid white wire)

Pin 3 = +12v in (Black w/ red stripe wire)

Pin 4 = Tach out (soild black wire)

Pin 5 = IGc (from coil, Black w/ white wire)



You will only be dealing with pins 2 (IGt), 3 (+12v), and 5 (IGc)



Hook Battery positive (+12v) to pin 3, Ground the case of the ignitor to Battery negitive.



Next, hook up you meter with it set to check continuity to pin 5 (IGc)
and the case of the ignitor. At this point, you should not have
continuity.



Next take your your 3 AA batteries and stack them in series (positive to
negitive) basically your trying to create a +5v supply to trigger the
ignitor as the ECU would. You will hook the negitive of the stack to the
case of the ignitor or the negitive of the car Battery (if you want...)
then you will momentarly connect the positive if the AA stack to Pin 2
(IGt). When power (5v) is flowing through pin 2 (IGt), you should have
continuity between Pin 5 (IGc) and ground if the ignitor is good.



If you do not get continuity between Pin 5 (IGc) and Ground when 5v is
applied to Pin 2 (IGt), then your Ignitor is bad (unless you've hooked
something up wrong)...



Make sure to not short Pins 2 and 3 together while doing the test or
you'll likely fry the ignitor. This is why the extra plug / pigtail test
harness is handy...

pulled that off another forum hope its of use to you