I'm new to the forums and bmw's. When I bought this car a few weeks ago I Was told it blew a head gasket from a bad water system. They went in as a non mechanic ( nothing wrong with learning ) and starting pulling things off the engine. The head was taken to a shop and redone, New gaskets and bolts, etc. When he went to put the cams on and get timing together ( he also bought the timing tools ), he was lost and decided to stop and sell the car. I looked over the car quickly, and the paperwork, everything looked good, so I bought the car and dragged it up onto the trailer.
when i got home I got to inspect everything closer. Cams had some small rust on them from water running in the hood vent, down onto the head with no valve cover on it. I pulled the cams, completely cleaned them to a good smooth surface. Seen the head had water under the cam on a spring. Got suspicious, pulled the oil drain plug. Nothing but dirty water, anti freeze, and oil. Went to inspect the timing chain, seen both guides where broke in half. That was the line in the sand. Pulled the Water system, pullies, timing cover, the head, exhaust manifold, whole top half. Ordered new gaskets, head bolts, guides, and was happy when they came in two days later.
Cleaned everything up, put all the new parts on, and was smacked in the face again. 4 Head bolts where stripped out before they hit 20 ft pounds. Other bolts went to 20 pounds. Stopped everything. Since gasket and bolts went on and started to torque, i ordered new Head bolts, gaskets, and a time sert kit recommended for the bmw ( m10x1.5x24.5mm ).
After getting all the parts I Installed the time serts in the block, all 14 holes. Put the head on, and everything went good. I torqued all the bolts to 20 ft pounds, then 30 ft pounds, then a full 90, then on the last 90, I only went to 45. It just seemed like a hole lot of pressure, and didn't want a chance at anything breaking. The time sert held up great so far. I put the the timing chain cover on and torqued that as well. Assembly oil on all lifters, and cam journals I installed the cams, on cap 7 of both the intake, and the exhaust, the bolt on the outside, stripped when torqued. I pulled the studs out, drilled, tapped, installed new studs (different size then original) and torqued them down. I pulled out the German auto timing kit, and went threw all the steps putting the cams in time. got it all back together, and it's not running on its own. No matter how many times the key is turned, etc. Starts and shuts right off.
couldn't figure out the problem so I did a bunch of test.
Fuel check,, fuel is delivered to the fuel rail. So I switched the relay. Didn't fix so I ran a hot wire to the pump. Didn't fix so I ran a pressure test, got 50 psi at the rail when key is on. Once you try to start the car same reading. Spray starting fluid in the throttle body, and it will start and run for a second then shut off. Gas is new, and clean.
Pulled all coil's and plugs. All looked good, with no differences, or bad plugs. So I ran a compression test. Engine doesn't run so it's a cold/dry test around 60 degrees outside. Working from front of car back, First 2 cylinders150, third cylinder is 155, 4th and 5th cylinder is 145, 6th cylinder is 160. The test was ran letting the engine get 3 revolutions each, with all plugs removed, and throttle wide open, no oil put in cylinders.
Next was OBD test. Got two initial codes p0120 and p1542, then hit erase codes, and got two different codes p1453, and p0412.
Car is in same position. Turn key on, wait a second, then start the car. It immediately starts, and then immediately shuts off. Regardless of pedal position, or amount of key turns. Anyone got any ideals to share with me?? I'd greatly appreciate it. All fluids, spark plugs, gas, and gaskets are all new.
There is a plug that I can't figure out where it goes. It is under the intake manifold, where the wiring harness is. It's the bottom plug. It has only one wire ( wire is Brown with a green line ). but is a two wire connector. Anyone know where this plugs into?? I've checked everywhere, and cant seem to find where it goes.