[Jazzbass]

Originally Posted by HughA44s

By the way I did some research and your numbers are not out of line with want others are seeing.

That is good to hear. The numbers were so good I was honestly afraid I messed up the test.

Originally Posted by HughA44s

Now on to the re-occuring P0171 and P0174 CEL codes hunt and fix.

Yup, that's where I'm at now. With the engine in good shape, I went and ordered replacement parts for anything rubber under the hood. This means:

• New power steering lines
• All new coolant hoses
• New manifold gaskets (throttle body/injectors/etc)
• new brake booster line
• New CCV (oil seperator and all hoses)
• New valve cover/oil filter housing gaskets
• New SAP hose
• New belts

Most of the stuff I got was Rein/Febi/etc. I.e. Not BMW parts, but supposedly good quality. Stayed away from the URO stuff. Interestingly, the best deal I found on this was from ECS Tuning for a cold weather kit from BMW. It was $100 for all of the parts (oil separator and all hoses).All the aftermarket brands were $200 for their kit.

So, time to begin. Let's get that manifold out. Many of the jobs I'm doing CAN be done without removing the manifold, but I love just taking everything apart, cleaning well, and reassembling. Spending hours trying to fish my hands around shit in a dirty engine is not really my thing.



Done. Kind of a bitch, but I've done worse. Ugh, it's so dirty.



For those wondering, I numbered the major items here:

1. Oxygen sensor lines running to the exhaust
2. Coolant hoses going to the heater core. The right one goes to the water control valve; the left goes to the expansion tank. These are being replaced because doing that later will require manifold removal again.
3. Fuel tank vent. Mostly hard plastic, but there is a rubber end on it (which is cracked and needs to be replaced).
4. Fuel lines. Still debating on replacing these. They actually look in pretty good shape (no cracks/dry rot)
5. Coolant Temp Sensor. Replacing because of WYIT - $10 for a new one and NFW do I want to pull the manifold later to do it.
6. Starter. Not replacing, which means it will definitely crap out on me a day after I get this thing back together.
7. Intake ports. Funny story - in removing the manifold, I found a little nest and a shitload of acorns on top of it. I guess someone had made themselves a nice little home up there for a while. I fortunately didn't find any critters. I removed the nest and vacuumed as much of the acorns and dirt out as I could. Some still fell into the intake ports when the manifold was removed, but thankfully the ports are prett big and easy to vacuum out (I made sure the intake valves where the nest was were closed for this very reason).
8. Upper water pipe. Plastic because BMW. Goes from the block to the heater core water valve. It and the rubber hose attached to it are being replaced.
9. Knock sensors. Like the starter, not being replaced so will probably crap out on me almost immediately after the car is back together.
10. Lower water pipe. Again, plastic. It and the rubber hose attached to it are being replaced (this rubber hose is the one that has the hole in it)
11. Valve cover. Gasket to be replaced
12. Oil hose to VANOS. Leaks everywhere. Being replaced.
13. Oil filter console. Gasket leaks everywhere. Will be removed and replaced.
14. Brake booster hose. Not in bad shape actually, but 17 years of rubbing on the bottom of the manifold has started to wear a hole through the hose. So it gets replaced, too.