lp_ceo

iTrader: (8)

I was wondering if anyone can help me with this .. 2005 evo 8 mr

crank but no start.. fuel pump cutting on, and injectors are firing

everything occurs with key on engine off..

I am not getting a ground to my crank sensor, cam sensor, nor maf sensor. Instead its getting 8 volts. All other terminals of the above sensors (crank,cam, and maf) plug have the right voltage as far as 12v, 5v.

Another issue is with the ignition coil. I haven't been able to get my hands on a schematic for the ignition circuit but i am getting 6v coming from the signal line with it unplugged from the coil. i know it should be a ground.

Im pretty sure is the ecu but i just need some opinions on the issue.

ran separate ground and crank, cam, and maf are reading now. ( ecu is not holding the ground.. going to see if there is another ground wire for the ecu and check if its open.)

Now as far as the ignition coil... i used my test light to check if the coil was getting the signal to fire cylinder 1 and 4 constant power( not cycling power to ground) cylinder 2 and 3 firing ( cycling power to ground). i would think there's something else in between the the coil pack and the ecu on that circuit that could cause this but i dont have a schematic to see.

UPDATE:

replaced ecu and that solved ground and ignition coil constant power issue.
Now its not starting

Fuel- good
spark-check
timing -dead on point

when in evoscan with key on my timing reads 61 degrees but when i crank, it goes to 5. i going crazy right now as there aren't any codes coming up and the car will start for 1 second then stall. when it stalls if gives off a backfire pop as if the timing was off but it isn't. and i can smell unburnt fuel coming from the exhaust. i also have brand new plugs in there gapped at .025. Is it possible for the ignition coil to cause this or a crank angle sensor.

any feedback from the log ?

ezz-e

iTrader: (5)

Unplug the sensors and check one by one if they are getting ground. they might share a commend wire between them

lp_ceo

iTrader: (8)

i know . thanks.

lp_ceo

iTrader: (8)

bump ttt for some info

lp_ceo

iTrader: (8)

anyone with any suggestions ?

gsrboi80

iTrader: (38)

You put a new ECU in the car did you put the correct Immobilizer code into the new ECU or disable it using ECUFlash????

lp_ceo

iTrader: (8)

yes i disabled it

TommiM

iTrader: (19)

any more backround info on your situation as far as did it just all of a sudden act up or something that got pregerssively worse? Were you or somebody messing around with the electronics beforehand?

lp_ceo

iTrader: (8)

Its a no start.. im getting fuel, im getting spark and timing is dead on. maybe the crank angle sensor but if it were that it wouldnt fire the spark plugs correct ?

lp_ceo

iTrader: (8)

i dont know wtf is going on and its driving me crazy. i have spark, im getting fuel, and i checked the timing (cam sprocket lines lining up with valve cover lines and crank marking lining up with tdc mark for 0 degrees on the lower cover)... i even disconnected the injectors and sprayed starter fluid. the only thing i got was backfire out the intake which suggests that the timing is off. this is base rom from an evo 8 with the immobilizer disabled...... Can someone send me a base evo 8 rom with the immobilizer disabled. maybe im not disabling it correctly.. im starting to run out of ideas

lp_ceo

iTrader: (8)

problem solved it was the camshaft sensor. couldnt even hold itself up on the radiator support...weak magnet... even though i bought one 1 month ago