Please oh please, help me get my car running!

[Antrieb]

Some of you may be following my thread on bimmerforums http://forums.bimmerforums.com/forum...d.php?t=608580
I posted in there too but I could always use some more suggestions.


Cliff notes, lol:


got a new 530!

$hit.. but on the way home.. there was oil in coolant and coolant in the oil

why didn't the owner tell me

oh wait.. it's not that bad.. we'll make it a nice project

got the parts.. putting it together

$hit.. won't start

we'll figure it out.. probably something small




damnit.. still can't figure it out..


Running out of time .. getting colder...






Basically the car keeps turning over and not starting, obviously. I've checked everything under the sun. Theoretically, it should start if it has fuel, oxygen, spark, and compression. Fuel pressure is good, brand new OEM spark plugs, no vaccum leaks, getting air, coils were tested and give great spark, compression is 140-150 and holding in all cylinders.

Everything is connected, full coolant, new oil, all gaskets from the heads up are new. Only thing not connected is one side of the exhaust.

Please help!

[Antrieb]

So, is there some giant on/off switch I forgot to flip on?

[BlueM60]

Ok, I havent really been involved in this thread so Im not sure of what all has been reccomended...

-Fuel yousaid you have pressure but is it being injected into the cylinders? EWS or CODE in the OBC will still allow fuel pressure to be present but wont allow the injectors to pulse, thereby cutting fuel to the cylinders.

-Main Relay, Im sure you have checked this already, but depending on what pin on the relay goes bad, you can still have fuel pump but the DME will not be powered. A simple way to test for that is to see id the "check engine" light does a bulb check when you turn the key on.

-Crank and Cam signals, obviously you have to have both of these in order for the DME to determine fuel and spark timing.

-Fault codes, is the DME throwing any fault codes that may help simplify the process of diagnosis?

I hope maybe something here helps, good luck on the progress.

-Ben

[Antrieb]

I'll go down your list of recomendations...


The fuel is definately getting into the combustion chamber. The spark plugs are wet when we take them out.

The main relay looked good but we replaced it anyway. The fuel pumps are working too.

The crank sensor is brand new, and the cam sensor check out okay.

When we checked for fault codes, the "check engine" light just keeps flashing forever. I believe that means that there are no codes, but I'm not sure. Is there some kind of code reader I should buy?

[billb]

i.e. wrong cam sensor plugged in the wrong port, cps sensor plugged in the wrong place? Sounds like you're just not getting fire to the plugs for some reason.

[Antrieb]

i.e. wrong cam sensor plugged in the wrong port, cps sensor plugged in the wrong place? Sounds like you're just not getting fire to the plugs for some reason.

Everything is plugged into where it should be, but I was wondering about it being gummed up or something. I will check that tomorrow.

[Ferret]

Question!

You've not managed to accidentally cross the spark plug leads over onto the wrong heads? (Just a thought - not sure if it's actually possible or not - just tossing ideas in)

Does it splutter at all?

[mamilapon]

How about the timing gears, did you align them spot on?

[Ferret]

How about the timing gears, did you align them spot on?

Good question - when rebuilding mine for the first time I got one of the cams out by just a tooth and it wouldnt run properly - would hardly start at all. Two teeth and I think it'd just sit there smiling at you refusing to start.

[Ross]

Yep, check cam timing. Does it turn over real fast?