Car Wont Start, No Spark

[Medium Dave]

Hey all,

Finally put my r32 back together after a blown head gasket (many headaches along the way of course) its full of the required fluids, battery is charged but she refuses to fire. Symptoms as follows:

Cranks over fine. Computer error codes - said all is ok. When manually turning the cas, output voltages drop out regularly, I can hear the injectors fire and smell petrol, I can hear the idle air valve open and close, I can hear the coil packs make a ticking noise (a bit like tapping a glass with a screwdriver) but when I sit a spark plug on a ground point I have no spark.

I have hit the plug with sand paper and it earth's ok (checked with multimeter) and made sure the earths for the ignitor are ok. I checked each coil pack for the correct resistance and they are all within the tollerence in the manual, and inspected for cracks/rust/filth and they are ok.

I know it is probably something simple, but I have poured over the manual, spent ages searching, but I just cant figure it out! So any help would be greatly appreciated

[Medium Dave]

I was hoping to just edit my first post, but I thought the info might just be handy to someone one day, so apologies for the unnecessary bumping.

I wasted a bunch more time this weekend on this stupid car, but I am pretty sure it is the ignitor/power transistor. I hooked up a test led to the plug which comes from the ecu with the signal to the ignitor, which flashed at the appropriate intervals when turning the cas. Then pluged the + and E leads into a spare coil pack and a test lead into the - and tapped the test lead onto an earth, result, spark. I tested the - wires in the wiring harness for continuity, and they tested ok. So the weak link appears to be the ignitor/power transistor whatever you call it, and the noise I was hearing from the coil packs was obviously my sanity draining away, blip by blip...

Anyways, Merry Christmas

[quink]

  Medium Dave said:

I was hoping to just edit my first post, but I thought the info might just be handy to someone one day, so apologies for the unnecessary bumping.

I wasted a bunch more time this weekend on this stupid car, but I am pretty sure it is the ignitor/power transistor. I hooked up a test led to the plug which comes from the ecu with the signal to the ignitor, which flashed at the appropriate intervals when turning the cas. Then pluged the + and E leads into a spare coil pack and a test lead into the - and tapped the test lead onto an earth, result, spark. I tested the - wires in the wiring harness for continuity, and they tested ok. So the weak link appears to be the ignitor/power transistor whatever you call it, and the noise I was hearing from the coil packs was obviously my sanity draining away, blip by blip...

Anyways, Merry Christmas

hey great investigative work, i'm watchin this thread too, coz i got the same problem but mine's intermittent. no spark just cranks away.

so ill test this guy too. the ignitor/power transistor is the black flat box thing at the back of the engine on the sparkplug cover right?

let us know if replacing that guy (and how much it cost) fixed the issue.