Hello, fellow E60 enthusiasts,

I have tried other forums to get help for an issue I am having with my E60, N52, but without much success. This forum was recommended so I thought I would give it a try.

I have done quite a bit of work to my engine, and at one point had it pretty much tore apart. When I got it back together, I had a crankshaft-camshaft correlation code. So, I took off the valve cover and re-time the engine. The correlation code disappeared. Up to this point I had both fuel pressure and spark. After I re-timed the engine, I still had fuel pressure but no spark. Below, I will post all the codes that my scanner pulled up. First, I will post 11 codes that were there before the no spark/crank no start issue. I do not believe these codes are related to the issue at hand, but I may be mistaken.

5EB1 - DSC
93D8 - steering column switch cluster
94E3 - steering column switch cluster
94EA - steering column switch cluster
9518 - steering column switch cluster
951A - steering column switch cluster
930C - light/lamp module
930D - light/lamp module
9C54 - heating and A/C system
9862 - seatbelt
2F0D - radiator blind

Below, are the two remaining codes. These are new codes that I have not seen before.

2A9A - crankshaft-intake camshaft synchronization
2EA1 - oil condition sensor

I tested a number of different parts, trying to figure out what would be causing the 2A9A code. I will describe those tests below.

I replaced all the spark plugs.
I tested all the coil packs and they seem to be just fine.
I checked the fuel pressure while I am cranking the engine. I get 70 psi.
I tested the crankshaft position sensor and both camshaft position sensors. All three seem to be working just fine.
I continuity tested the signal wire that runs from the exhaust camshaft position sensor to the ECU. It passed the test.
I swapped the two camshaft position sensors. Immediately I got the code below, besides the ones I had already posted above.
2A9B - crankshaft-exhaust camshaft synchronization
I then swapped them again, putting them back in the original positions, and 2A9B code disappeared.
I removed, tested and cleaned both Vanos solenoids. Both of them seemed to be working just fine.
I swapped the two Vanos solenoids. Immediately I got two Vanos codes.(I don't remember what they were) I swapped the Vanos solenoids again, putting them back in their original positions, and both Vanos codes disappeared.

Does anyone have any ideas what this could be pointing to? Could it possibly be a timing issue or do you all think it might be something else?
I am at a loss as to what to try next. Any thoughts and/or advice will be greatly appreciated!

Thanks!

 

Are the sensor original or replacement sensors? If they are replacements what was the brand. If the are aftermarket then I would replace them. Aftermarket sensors are not good on these cars and can create confusion. Always OEM/OE sensors on the engine.

What are you troubleshooting with a reader, scan tool or BMW software tools. You need to have something to assist you and I would suggest ISTA. Things like this is hard to say what's going on because there's so much in between. It could be a sensor, wiring/connector or the computer itself. The code you're getting is point to one of those. Timing issue would give a different code.

 

Thank you very much for your insight. The crankshaft position sensor and both camshaft position sensors are replacements. The brand is WVE. I do not believe that these are OEM. I will check into that next. I am fairly new to BMW having owned this car for only about 1 1/2 years. What is a good recommended brand for these sensors?

I am using an Autel MaxiSys MS906BT for diagnostics.

 

VDO is the OEM brand. 2 cam sensors, 1 crank sensor and 3 orings. See pic

 

Thanks bro, I will go ahead and replace those sensors and then will follow up here and let you all know how it turned out.

 

Make sure you perform a reset also once calibration also. Ensure the connectors are not covered in oil and looks good.

 

I just thought I would share an update since I had told you I would be getting back and letting you all know how things went. It is showing like my new sensors will arrive next Thursday. I will post another update after I have received them and tried them.

 

Ok let us know

 

OK, so I received the new sensors in the mail and replaced them today. It didn’t make any difference. The car still won’t start and I have the same crankshaft/intake camshaft correlation code.

does anyone have any more suggestions as to what I should check into next?

 

You replaced the intake camshaft sensor and still have the code? If so make sure the connector does not have oil in it and check wiring. In some rare cases it can be the solenoid but that's happened to me once. I had to remove the solenoid and clean it. Some times a clean is good enough but if it's bad then it will have to be replaced. I would ensure your intake sensor connector and wires are clean and not damaged before moving to the solenoid. That's is all that will give that code. Your issue is on the intake side