I have been creeping around the forum quite a bit but havent needed to post anything. great info on here.?
After searching and finding similar problems posted by other members(mostly no spark and no inj pulse), I have yet to get my van started.
I have an 86 van with a 2001 auto legacy 2.5. I did my own harness following Mick at boxerswaps/busaru.?It seems that my injectors are not getting a pulse signal. The injector plug is getting 12v to the?+ pin but doesn't seam to be getting a ground pulse.
Tests i have done so far
Check b+. its good.
Check Ign on power. good.
Check fuel pressure - 38-48psi
Check if inj are clogged. they open and spray if voltage is applied directly.
Checked crank sensor resistance. ~1.8k ohm. Produces voltage as well
Checked cam sensor resistance. ~1.8k ohms. Same
Checked all inj resistance. ~15 ohm
A friend had mentioned an immobiliser. Swapped ecu's x3. no change.?
Backprobed inj ground at ecu. getting ground. tested w a multimeter. 12v when one probe on b+ and other on inj ground.
Backprobed inj ground at bulkhead connector wiring harness side. same result as above.
Backprobed inj ground at bulkhead connector engine side. same result as above.
Tested grounds for cam and crank sensor. same as above.
Tested grounds for ign system, power supply and control systems. same as above.
Tested for voltage at knock sensor. 2.5v close to spec according to my pinout.
Backup power supply has 12v
Relays are working
Timing is on point.
No broken teeth on any of the timing gears.
Cam and crank sensor 'faces' are clean?
Atmospheric pressure sensor swapped. no change.
Cam and Crank sensor swapped. no change.
Ecu swapped. no change. this was swapped with multiple other 2000-2001 legacy ecus. not the same exact numbers but has the same ecu plugs.
Checked engine fault codes. p0463 code. irrelevant.
I am at a loss here. The van will start and run for a sec or two with starting spray but dies soon after.?
Is there a way to test the inj ground that i am missing?
Please let me know if there is anything i should do or if you have any suggestions.?
There still is one wire coming off the gray/brown engine connector that wasnt identified. I dont believe it has anything to do with the injector system but idk for sure. red/green on the gray side. white/blue on the brown side. (This has been identified as a power wire for the purge valve under the manifold)
Thanks in advance.
-Ethan
