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Discussion Starter · #1 ·
Now the kicker, I like to drive my car is the lower RPM range, saves gas, which is over 1$ a liter. Now, if I allow my car to be at low throttle and let it reach 3500-4000 rpm, it will instantly feel perfect again. It's really puzzled me.

I've changed:
- Spark plugs (had spare set)
- Wires (same deal)
- Cap and rotor have less then 10000kms

I've done:
- Set timing
- Checked gap of plugs
- Checked codes (CEL was on about the O2, nothing else)

Things I know are going bad:
- Head gasket leaks like a mother
- Burns about 1 liter of oil for 3000kms if I push it. I add nothing if I don't
- TB idle screw is jammed....bad...

I'm suspecting that the fuel might be the issue. I have B16 injectors (no difference, but still mentioning), fuel rail and the FPR is from a Z6 (no gauge to adjust my adjustable one ). The other is that the motor is just fucked and now blowing up slowly on me. When it was first put in it felt faster then the B16, but it only degraded from there.

I'm really puzzled, I wanna put my now fixed B16 back in I just simply don't have the time to do it right now. I'd rather fix it and wait for warmer weather.

Cribs:
- Car lost all mid range/mid throttle
- Compression still good, hauls ass on full throttle or high rpm
- 90 civic, B18A, OBD1 (with proper ECU now)
 

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Discussion Starter · #3 ·
SETI20 said:
I'm puzzled as well.
If you know the headgasket is going out.... why are you trying to diagnose problems with such a major malfunction un resolved?

Process of elimination. Headgaskets cause a whole range of issues. Fix it. Re-evaluate.
Head gasket only leaks oil from the front left side of engine. Coolant level stays perfect ever since the swap. It's not rush since it's a very small leak but I know it's still a problem.

I wanna run a comp. test on the engine but I have to rely on my brother for that one, and he sucks as far as reliability. I also wanna fix my O2 sensor to remove it from being a possibility.

Would an O2 sensor make things that bad? Car only throws O2 sensor code.
 

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The 02 sensor is turned off, so to speak, in open loop mode.
Open loop mode is for instance at WOT. So yes, it will cause problems, and can exacerbate other problems.

Even a small head gasket leak leak can cause blow by and a whole range of problems. It can also mask any problems you might have with your rings for instance.

Like I said...headgaskets are a huge factor in problem diagnosing.
 

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Discussion Starter · #5 ·
Well last night I got fed up and took off my dizzy and tore it apart. To my horror I found that the cap had no gasket around it, and the inside of the dizzy was very rusty. I completely tore it apart and rebuild it using a new ignitor (was rusted to ****), cap (took 4 hours to remove it from the shaft, after cracking the metal part in half it still wouldn't let go of it's death grip) and cap. I reinstalled it and the engine felt very smooth, still weak, but smooth. I also did a comp test, the engine was testing a little on the low side, but now that it's responsive again I don't care, the healthier B16 is going back in in the spring.
 
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