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  1. nonickatall

    No A/C, driving me crazy.

    I wrote in another forum: Here's a short list of how you can check your air conditioning system yourself... First, you'll need a multimeter. The most important thing is that the air conditioning system is properly filled. If it is, the low-pressure and high-pressure sensors must be...
  2. nonickatall

    Need advice with ordering valves and cylinder head gasket

    $700 for rebuilt cylinder heads, include work and material?! You live in the land of the blessed. I paid €1300 just for new valve seats and a resurfacing, which is pretty much the equivalent in dollars. I've rebuilt enough cylinder heads and engines already, I have my own workshop, the...
  3. nonickatall

    Engine build/rebuild precision tools

    Yes, the SI system is great, and I still can't understand why Americans are still using that weird imperial system, which is only good if you grew up with it, but even then I find it totally bizarre: 4/8 + 1/4 + 3/6, insane! And torque in all those strange units: pounds, lbs, and who knows what...
  4. nonickatall

    California smog i/m 02 sensor code needs complete

    Very good description. You can also measure the o2 Sensor with a normal multimeter. Heating (two white cable) between 3-15Ω The sensor wire (black to body ground), can be measured with a needle tip. It should read approximately 0.45 volts, or fluctuate between 0.1 and 0.9 volts. A multimeter...
  5. nonickatall

    Engine build/rebuild precision tools

    Wow, nice tools! Great investment.
  6. nonickatall

    Need advice with ordering valves and cylinder head gasket

    When they did the machining, they asked me for one intake and one exhaust valve they used to measuring. So I think the machining fits to the original valves..
  7. nonickatall

    Need advice with ordering valves and cylinder head gasket

    No, I'm not talking about the fact that intake and exhaust valves are different sizes, that's obvious. Rather, as you can see in the two screenshots from RockAuto, the valves are offered with different descriptions. For example, if we look only at the intake valves, it says "dia, stem, head,"...
  8. nonickatall

    No A/C, driving me crazy.

    Hauckende issue with magnetic How can there be a problem with the magnetic clutch if you bypassed the compressor relay at the beginning and the system is running? Strange diagnosis... If the signal isn't reaching your magnetic clutch, then your system is detecting that either the pressure...
  9. nonickatall

    Need advice with ordering valves and cylinder head gasket

    Yes, 2006 LQ9 6 Liter
  10. nonickatall

    Engine build/rebuild precision tools

    I wouldn't overcomplicate things with torque wrenches; it's not rocket science. Besides, you can calibrate torque wrenches relatively easily yourself. You simply clamp the head in a vise and attach a defined weight to the end. All torque wrenches have an adjustment screw; you just need to...
  11. nonickatall

    Need advice with ordering valves and cylinder head gasket

    I guess that's a good idea in the USA, but here in Germany, my car, this engine, is absolut exotic. I guess my heads were the first LQ heads they ever machined. And if they are willing to get the parts for me, they buy them at rockauto for 5 dollar per pce and sell it to me for 50 each...
  12. nonickatall

    Need advice with ordering valves and cylinder head gasket

    Hello, after a lot has happened in my life and I haven't really made any progress with some things, I need to finally finish my engine overhaul. I discovered some time ago that some of my valves were worn at the top, practically where the rocker arm engages, which obviously isn't ideal. Old...
  13. nonickatall

    A/C Question

    That sounds unlikely; a relay doesn't care about the load, but maybe your compressor is afraid of the dark. :Big Laugh: Just kidding. The main thing is that it's working again.
  14. nonickatall

    California smog i/m 02 sensor code needs complete

    Your o2 sensor works on the following principle: Your engine measures temperature, air volume, accelerator pedal position, and so on, and injects the necessary amount of fuel accordingly. Ideally, this mixture shouldn't burn too lean, which would produce nitrogen oxides, or too rich, which would...
  15. nonickatall

    P0300 misfire on 1 3 5 7

    When the o2 Sensors are new, the remaining suspicion imho is your harness..
  16. nonickatall

    P0300 misfire on 1 3 5 7

    If the engine runs smoothly until it reaches operating temperature and misfires occur on cylinders of one cylinder bank, I don't suspect an intake leak. The problem with intake leaks is that the amount of air drawn in doesn't match the reading from the mass airflow sensor. This leads to a lean...
  17. nonickatall

    P0300 misfire on 1 3 5 7

    That sounds exactly like an electrical contact problem, because it often happens when you have, for example, a broken wire and the wire is cold. Then the current flows, but if current flows regularly, the contact resistance can increase due to heating, and that's when the problems start. Since...
  18. nonickatall

    P0300 misfire on 1 3 5 7

    It certainly sounds like a problem with your left cylinder bank, since cylinders 1,3,5 and 7 are all on the driver's side. The only thing I can think of that could affect all four cylinders simultaneously, assuming you've already replaced the usual suspects like the catalytic converter, ignition...
  19. nonickatall

    A/C Question

    I don't understand this. Normally, when I get an air conditioning system in the workshop that isn't working, I connect my service tool and remove the refrigerant. The remaining amount in the system tells me what the problem is. Either it's just lost some refrigerant over the years, or it's...
  20. nonickatall

    A/C Question

    Good and accurate explanation…:thumbsup: With this system, as with all air conditioning systems, the first thing to do is rule out moisture in the system and check if there is enough refrigerant. If these parameters are okay, many other components could be faulty. However, some things can be...
  21. nonickatall

    A/C Question

    That's basically correct, but our systems have two pressure switches: a low-pressure switch and a high-pressure switch. If you have far too little refrigerant in the system, the low-pressure switch will register insufficient pressure, and the system won't even start. If too much pressure...
  22. nonickatall

    A/C Question

    Than its very likely that the amount of refrigerant is to low...
  23. nonickatall

    A/C Question

    What happened before? Was it just an air conditioning service, or was the system out of service for an extended period? If it was out of service for a longer time, the mechanic should have vacuumed the system for a longer period to remove any residual moisture. But that's just speculation, of...
  24. nonickatall

    A/C issues in July after recently rebuilding.

    So, if the low-pressure side has a too low pressure and the system shuts down as a result, that suggests there's too little refrigerant in the system overall. The high-pressure side is irrelevant for now. I wouldn't replace any lines; why bother? I'd simply add more refrigerant, and that...
  25. nonickatall

    A/C issues in July after recently rebuilding.

    You don't need a smaller diameter line; you can simply add a little more refrigerant. If you have a friend who works on air conditioning, have them add 50g more refrigerant to the system and check the pressure gauges. That will tell you if the amount is correct. If it's not enough, just add...

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