need help...

[ujawa]

new to the dsm world and already im questioning my decision to get my 97 eclipse gs... has 420a nt 5spd. all factory, bone stock. blew heater hose. simple enough fix. afterwards i warmed the car up, checked for leaks, found none. turned it off. next day it doesnt start. this was a week ago. im getting no spark. have fuel and compression. have replaced the following through after testing and process of elimination...
CrPS
CmPS
ASD relay
ignition coil
PCM (swapped from another running car. other car still runs with my PCM)
now im testing wires. tedious and painstakingly... i read that i should be getting +8v from the PCM to both CrPS and CmPS. im only getting 60 mv. if my PCM is good, why would this be happening??? have a feeling that this is what is causing me to get no spark... but, other than the a bad PCM, what would/could cause me to not even get 1 v through a wire that should be getting 8... also, did a resistance test on the wires. PCM pin 44, yellow power wire for CrPS & CmPS, multi meter is reading 00.0 ohms. same with the CmPS signal wire from PCM pin 33 and the sensor connector. the only one that has any resistance is the ground. and even then thats only when i touch the lead to the block or the battery. also, when i ground the signal wire from the connector, the asd relay clicks, then about a second later, clicks again. and two more times in the same manner upon removing the lead. someone please help. im stuck and need this car running.

 

[Fotowntalon]

It sounds like the heater hose should have no bearing on the car starting, if you have compression and fuel, just missing spark, so its trying to turn over, its a long shot, but did you check your engine link fuse? That will stop it from sparking.

 

[ujawa]

the engine fuse is good. checked it as a duh fix a few days ago. it is intact. along with all other fuses in the car. i wish it was that simple... about to go cut into the wiring harness and begin the long tedious task of checking the wiring around the egr pipe. i have read that because of how close it is to the pipe, it causes a lot of problems with the wiring. ie, CmPS wiring. and after getting the same .06 v reading off of two different PCMs, im leaning toward wiring. thoughts???

 

[jayson427]

If you're checking at the sensors for voltage and not getting the proper voltage then you need to check right out the ecu. Find what pins are for the coil, asd and stick your voltage meter right into the pin. If you get the correct voltage then chase the wire down and see where it drops. You're probably right about the egr area it can cause wires to melt. Hopefully this helps.

 

[jimmy427]

You can try disconnecting the cam sensor lave it unplugged and see if it changes anything

Are you sure all the plugs are not getting spark