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Old 03-15-2005, 07:47 PM   #1
kimmae
Scooby Newbie
 
Member#: 82607
Join Date: Mar 2005
Default CEL, lumpy idle, low injector control circuit, misfires

Car: '98 legacy L EJ22

codes & explanation from OBDII scanner:
P0270 - inj. 1 injector control circuit low
P0261 - inj. 2 (same)
P0264 - inj. 3 (same)
P0267 - inj. 4 (same)
P0301 - #1 cylinder misfire
P0302 - #2 (same)
P0303 - #3 (same)
P0304 - #4 (same)

I had another thread going about timing belt issues.. the head just came back from the shop yesterday after getting some fresh valves and a full valve job etc. I put everything back together today and was again very careful about setting the timing. All the injectors are plugged in, the cam sensor is plugged in, and the crank sensor is plugged in. There are no vacuum leaks, the spark plug wires are fine, and the plugs are new and gapped correctly.

This car had no CEL before, and it is leaving me wondering if I got the timing one tooth off or one of the sensors is bad. The car idles poorly, like it has cams.. but it drives pretty normal. I had some concern about setting the timing because even when the marks on the new OEM belt line up perfectly on the cam gears and crank sprocket the cam gears are very slightly off from the marks in the covers (the timing cover that goes on underneath the cam gears). If you have the timing belt marks aligned perfectly with the markings ON the cam gears and on the crank sprocket where the hash mark is perfectly, there shouldn't be any problem right?

The only other thing I think that is worth mentioning is that I unplugged all four injectors AND the coil pack to turn the car over a few times with the starter to make sure it sounded good and to prime the fresh head with some oil before starting it. I am going to try resetting the ECU after I finish dinner to check and see if that does anything. I welcome any other ideas..

Kimberly M.
Charlotte, NC
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Old 03-16-2005, 11:40 AM   #2
kimmae
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Member#: 82607
Join Date: Mar 2005
Default bump

I need some help.. anyone have any ideas?

I reset the computer and the CEL went away for the five minutes that I ran it but it still idles poorly..
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Old 03-16-2005, 12:02 PM   #3
00Maddog
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Member#: 62410
Join Date: May 2004
Chapter/Region: AKIC
Location: land of awd
Vehicle:
2004 ra'd redrex in
8k w/ STI kit :) DASH

Default

Quote:
Originally Posted by kimmae
If you have the timing belt marks aligned perfectly with the markings ON the cam gears and on the crank sprocket where the hash mark is perfectly, there shouldn't be any problem right?
correct, ignore the marks on the covers, they are approximate. The injector codes set cause you had them unplugged. The missfire codes can happen when you start an unprimed fuel system, but they could be missfire's too. I have heard that the injector plugs can be switched, i.e. from #1 to #3, and #2 to #4. The engine will run fine higher rpm, but will idle terrible and missfire. You will have to check the service manual to verify wire colors to each injector, to see if you've mixed up the plugs. Good Luck, that is the only "easy" thing I can think of.
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Old 03-16-2005, 05:22 PM   #4
kimmae
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Member#: 82607
Join Date: Mar 2005
Default problem solved

i replaced both intake manifold gaskets and found one of the old ones had buckled and was leaking. there were two vacuum lines at the throttle body that had cracked as well. re-checked the plugs and one was a bit more open than necessary. car purrs like a kitten again, no CELs.
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