i pray that you can help me.

i am not able to find out why this cylinder is not firing.

i have tested all wires going to coils and injectors.

i i get juice on 2 wires and other is ground at all cylinders except last one rear drivers side.

it only has voltage on middle wire and not to red strip wire.

thus i am getting no change in engine when i remove coil connector with engine running.

also getting raw gas in exhaust causing it to burn there and i know this can damage rings and cat and many other things

i have also removed connector to ptu and find same wire to coil is dead at this point.

no voltage.

is it a broken wire or bad ptu or can i test at ecu?

i do diagnotic on ecu and get code 55 - no malfunction.

is it compensating

 

i am lost

pls. try to help me.

J.R. ATLANTA GA.

im no expert but it sounds like a broken wire to me?

you are gonna need advice from jeff tt or andy or nico.they are the guys on hear who know there stuff.put a post up for them to get there attention.jay

You need to try changing the PTU for a known good one. Sounds like there is a connection broken internally on the PTU. Have you checked the other connector to the PTU just to check???

 

HTH

 

CheerZ,

 

Andy

i should of known better !!ive just done my ptu mate ...andy is right !!!

have a look http://www.aus300zxclub.com/tech/moveptu/movingptu.htm