Hey guys, so one possible result of me fixing the blower for AC on this 02 Protege5 (based on y'alls awesome advice) was to worsen the engine missing problem I've got.
Before I go further, I should state that this poor thing has probably been ragged to death/driven like it was stolen and had almost 140k miles already when I bought for cash last year off craigslist. It clearly had been in a front right collision but the guy did a decent job replacing and painting the hood. He replaced the timing belt and water pump so I was hoping to get to 200k miles. Also, it is really fun to drive as I'm sure y'all already know. I wish I had had one of these things in its prime!
The missing issue popped up a few thousand miles after and when it got worrisome, I took it to a local mechanic who said he'd start with the spark plugs, then ignition coils, then if still missing, go for the intake manifold. My research has pretty well checked out with that diagnosis. I had him replace the plugs and coils which seemed to tone it down for a while but now it's back and getting worse.
There's a weird pattern - if I drive after letting it sit overnight, then let it sit for 2 or more hours, it's fine, doesn't miss. If I make a quick grocery run, it misses once I'm on the return trip. So, it's OK for going to work for a job and back but that's it.
Now it's even worse - I think running the compressor for the AC has got it all angry and it just feels like it's about to wobble out of the dang hood.
Should I go ahead and have the intake manifold replaced? That's easily gonna be a 600$+ job that I can't do. I'll do it if there's a good chance it'll kill the missing problem.
I keep getting the OBD-II code for P033 I think, for the 3rd plug. Every time. I'm wondering if maybe I got a bad deal on the plug/coil work. I could try switching plug and/or coil around, maybe?
Well anyway thanks for reading all this and any advice is welcome. I'm at least a year out from affording another car.
kyuudou in TX
Update: I rescanned the codes and I'm not sure if I missed it before but along with P0303 (same 3rd cylinder, a "current" code) I'm getting P0660 (Intake Manifold Tuning Valve Control Circuit/Open Bank 1) which is under "pending" codes.
Before I go further, I should state that this poor thing has probably been ragged to death/driven like it was stolen and had almost 140k miles already when I bought for cash last year off craigslist. It clearly had been in a front right collision but the guy did a decent job replacing and painting the hood. He replaced the timing belt and water pump so I was hoping to get to 200k miles. Also, it is really fun to drive as I'm sure y'all already know. I wish I had had one of these things in its prime!
The missing issue popped up a few thousand miles after and when it got worrisome, I took it to a local mechanic who said he'd start with the spark plugs, then ignition coils, then if still missing, go for the intake manifold. My research has pretty well checked out with that diagnosis. I had him replace the plugs and coils which seemed to tone it down for a while but now it's back and getting worse.
There's a weird pattern - if I drive after letting it sit overnight, then let it sit for 2 or more hours, it's fine, doesn't miss. If I make a quick grocery run, it misses once I'm on the return trip. So, it's OK for going to work for a job and back but that's it.
Now it's even worse - I think running the compressor for the AC has got it all angry and it just feels like it's about to wobble out of the dang hood.
Should I go ahead and have the intake manifold replaced? That's easily gonna be a 600$+ job that I can't do. I'll do it if there's a good chance it'll kill the missing problem.
I keep getting the OBD-II code for P033 I think, for the 3rd plug. Every time. I'm wondering if maybe I got a bad deal on the plug/coil work. I could try switching plug and/or coil around, maybe?
Well anyway thanks for reading all this and any advice is welcome. I'm at least a year out from affording another car.
kyuudou in TX
Update: I rescanned the codes and I'm not sure if I missed it before but along with P0303 (same 3rd cylinder, a "current" code) I'm getting P0660 (Intake Manifold Tuning Valve Control Circuit/Open Bank 1) which is under "pending" codes.
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