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Old 08-14-2010, 09:24 PM   #1
rusty43
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Question 98 EJ22 Missing after heads replaced

My water pump failed and I had to replace all my intake valves when the timing belt came off. After reinstalling everything today it is running rough and missing at all speeds. If I unhook the right side injector connectors I get no change in idle speed, left side you have to rehook it quick or it wants to stall. Did I trash my injector tips on the right side when I had the intake manifold loose on top of the engine or could I have pinched a hose, wire somewhere? I don't know if the injectors project out of the intake enough to get damaged. I know the timing belt is on properly because I've done it before. Spark plugs looked good when the heads were off. No CEL. I did my valve clearances on the bench where it was easy. Any and all advice welcome.
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Old 08-14-2010, 11:09 PM   #2
yarrgh
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Check the injector plugs, you may have bent a pin so now the injectors aren't firing. You can also listen to the injectors clicking with a screwdriver held to the ear to hear if they're working.

The injectors don't stick out of the IM, so they probably weren't messed up from you. But you say that you had the IM loose on top of the engine, wasn't it in the way when removing the heads?
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Old 08-14-2010, 11:57 PM   #3
Tim Sanderson
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are there hydraulic or manual lash adjustors in that motor?
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Old 08-15-2010, 12:13 AM   #4
PhilSine
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Quote:
Originally Posted by Tim Sanderson View Post
are there hydraulic or manual lash adjustors in that motor?
Hydraulic
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Old 08-15-2010, 02:32 AM   #5
rusty43
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Quote:
Originally Posted by Tim Sanderson View Post
are there hydraulic or manual lash adjustors in that motor?
Nope, it's manual adjusters. I managed to move the manifold around enough to not have to take it right off the motor. The injectors were never unplugged until I started checking for misfire. I will do the screwdriver stethoscope trick tomorrow to see if they are firing.
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Old 08-21-2010, 03:01 PM   #6
rusty43
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Still scratching my head on this one. New plugs. Right side plug tips black, left side still white. Left side appears to be firing properly. Compression is very good, 195 right side and a bit lower on the left (260K on engine). I cleaned up the ground connections on top of the manifold that appear to be for the injectors. I pulled the right side injectors and the tips looked pristine as there is no way they touched anything while the engine was apart. It shouldn't be fuel pressure because then the left side shouldn't work properly either. I guess I'll ohm check the ground circuits on the injectors and then start stripping harness to see what's going on. Is my compression normal? Seems high to me, I wonder if the coil can't deal with this high number, I have no idea what it was before the timing belt issue.
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