dead cylinder
08-08-2007, 06:51 PM
#4
Originally Posted by MyGreenMax94
How did you determine the injector is good/not leaking?
Originally Posted by internetautomar
did you do a compression check?
08-09-2007, 07:00 AM
#6
with the best way i knew. got a new one
If its still bad, check wiring, maybe there just is no signal going to the coil or the injector.
Do you have the FSM? There is a procedure in there (p399, EF & EC-221) which shows how to manually trigger the injectors using the CPS, so when you do this and hear each one click that means it and the wiring are working.
You can check the coil/plug. Take them out, with both connected and the harness hooked up, place end of the spark plug against an engine ground, then have someone crank the engine while you look to see if it sparks. This is described on that same page. I would assume you unplug the other coils and injectors while doing this, but it doesnt state this explicitly.
What I’m “driving” at here is don’t assume that something just works because its new, try to check it in every way possible, then double check and cross check a different way to make sure.
08-09-2007, 09:47 AM
#9
Originally Posted by mooze
i check the coil and pug by putting them in another cylinder. i have the fsm so ill check wiring later. now at work
Originally Posted by mooze
with the volt meter there is continuity between + and - but e gets nothing i tested this b-4 i posted
In my experience with coils, they either work right or dont work at all. Swapping two and then pluging/unpluging them while the engine is running is enough to diagnose the coil as an issue. When I measured the resistence on mine they were all too high, but all had the same value and a few were very new... so sometimes the equipment can lie due to tollerences/quality.
08-09-2007, 11:42 AM
#10
Senior Member
Join Date: Jul 2002
Location: Bellevue, WA
Posts: 702
Take the plug out, ground it to the block away from any oil or gas, and crank the engine and see if you do have a spark. Hold with insulated pliers or gloves (high voltage). If you've got a spark then it's compression or injector. If not then follow the electrical signal back up the line (Plug, coil, connector, wire etc.) until you find out where it's not getting through.
08-09-2007, 11:08 PM
#11
Originally Posted by mikekantor
This is on the coil harness or the coil? You are supposed to measure resistance on the coil, not continuity. I dont think it is a large ohm value, so the volt meter could be showing that as having continuity depending on how its set.
In my experience with coils, they either work right or dont work at all. Swapping two and then pluging/unpluging them while the engine is running is enough to diagnose the coil as an issue. When I measured the resistence on mine they were all too high, but all had the same value and a few were very new... so sometimes the equipment can lie due to tollerences/quality.
In my experience with coils, they either work right or dont work at all. Swapping two and then pluging/unpluging them while the engine is running is enough to diagnose the coil as an issue. When I measured the resistence on mine they were all too high, but all had the same value and a few were very new... so sometimes the equipment can lie due to tollerences/quality.
08-11-2007, 12:20 PM
#14
Senior Member
Join Date: Jul 2002
Location: Bellevue, WA
Posts: 702
Originally Posted by mooze
ok. so this is the deal. something is seriously wrong under cover. it made this loud tapping today by the cylinder but didnt misfire. when the tapping is gone cylinder is dead again.
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