SandmanEnters
New member
Hi Guys
This will be a long one, my OCD tends to kick in when talking cars. You have been warned
I have steadily been working to rectify the MANY problems on a 2002 BMW 330d (Auto) that I purchased last year. Previous owner must have been actively trying to see what the worst condition is that can be achieved on this awesome car.
Long story short, I am winning the battle. However, I had been experiencing some irregular throttle response for a long time. This later developed into a situation were the engine cuts out when the throttle is depressed very quickly all the way down to the kick-back switch. When running diagnostics later, Throttle Sensor Position (0120) was logged as the fault code. I was advised by a local useless mechanic that I needed to replace the entire throttle body. This was a few months ago, and I have not done this yet. Since the mechanic was wrong about everything else (When I told him what I believed the other problems were and brought him the parts to fix it, he actually laughed at me and said he's doesn't want to steal my money. Asshole. Turns out I was right btw - Thermostat stuck open, low pressure pump stuffed etc.) I decided to ignore the throttle problem for the time being.
I ended up doing a lot of the diagnosing and some of the fixing myself, aided of coarse by all the advise you guys post on here daily. Thank you for that. I am afraid I need to ask your help once again though.
The throttle cut-out happened again today, presenting with the DDE light. I had hoped that this problem might be related to some other issues and that it would be resolved after my last round of proper repairs last week, (this was done by an ex-BMW master technician who now runs his own shop). He really did a amazing job on everything I asked of him and much more that I was not even aware of.
Unfortunately, the code is back. (I had decided to do a final check for faults and pressure readings as I am getting my RaceChip Pro 2 in two days time and I want to have peace of mind that everything is tiptop before upgrading).
We cleared the code and went for a drive with the diagnostics plugged in, I put my foot down all the way very quickly and it popped up again. So that's confirmation I believe. To be clear, when depressed normally, the throttle does NOT cause the engine to cut out even when fully depressed. ONLY when doing so in a very aggressive manner does the engine cut out. It happens only for a moment or two, presenting with the DDE light, and then everything goes back to normal. Even if the throttle is kept down all the way, the engine still springs back to life and starts pulling again. I have always felt that the car seems a bit underpowered in the first three gears, and at low rpm's. This has been much better (yet still bothered me a tiny little bit in the back of my mind), since all repairs have been done, so I really hoped the problem was sorted. But it seems there is a throttle issue.
This would explain my consumption as well, which I thought was just from my enthusiastic driving the last week. However, it is still on the climb when driving normally in the city. At 12l/100km this afternoon, which simply cannot be right.
So i guess after all my yapping, my question is this:
Is the only solution for me to replace the entire throttle body or is there still some things that can be checked that I am not aware of? Throttle body is a flippen expensive part, and it will have to be ordered through the stealers if I want a OEM part.
Any advise would be sincerely appreciated, thank you.
Regards,
This will be a long one, my OCD tends to kick in when talking cars. You have been warned
I have steadily been working to rectify the MANY problems on a 2002 BMW 330d (Auto) that I purchased last year. Previous owner must have been actively trying to see what the worst condition is that can be achieved on this awesome car.
Long story short, I am winning the battle. However, I had been experiencing some irregular throttle response for a long time. This later developed into a situation were the engine cuts out when the throttle is depressed very quickly all the way down to the kick-back switch. When running diagnostics later, Throttle Sensor Position (0120) was logged as the fault code. I was advised by a local useless mechanic that I needed to replace the entire throttle body. This was a few months ago, and I have not done this yet. Since the mechanic was wrong about everything else (When I told him what I believed the other problems were and brought him the parts to fix it, he actually laughed at me and said he's doesn't want to steal my money. Asshole. Turns out I was right btw - Thermostat stuck open, low pressure pump stuffed etc.) I decided to ignore the throttle problem for the time being.
I ended up doing a lot of the diagnosing and some of the fixing myself, aided of coarse by all the advise you guys post on here daily. Thank you for that. I am afraid I need to ask your help once again though.
The throttle cut-out happened again today, presenting with the DDE light. I had hoped that this problem might be related to some other issues and that it would be resolved after my last round of proper repairs last week, (this was done by an ex-BMW master technician who now runs his own shop). He really did a amazing job on everything I asked of him and much more that I was not even aware of.
Unfortunately, the code is back. (I had decided to do a final check for faults and pressure readings as I am getting my RaceChip Pro 2 in two days time and I want to have peace of mind that everything is tiptop before upgrading).
We cleared the code and went for a drive with the diagnostics plugged in, I put my foot down all the way very quickly and it popped up again. So that's confirmation I believe. To be clear, when depressed normally, the throttle does NOT cause the engine to cut out even when fully depressed. ONLY when doing so in a very aggressive manner does the engine cut out. It happens only for a moment or two, presenting with the DDE light, and then everything goes back to normal. Even if the throttle is kept down all the way, the engine still springs back to life and starts pulling again. I have always felt that the car seems a bit underpowered in the first three gears, and at low rpm's. This has been much better (yet still bothered me a tiny little bit in the back of my mind), since all repairs have been done, so I really hoped the problem was sorted. But it seems there is a throttle issue.
This would explain my consumption as well, which I thought was just from my enthusiastic driving the last week. However, it is still on the climb when driving normally in the city. At 12l/100km this afternoon, which simply cannot be right.
So i guess after all my yapping, my question is this:
Is the only solution for me to replace the entire throttle body or is there still some things that can be checked that I am not aware of? Throttle body is a flippen expensive part, and it will have to be ordered through the stealers if I want a OEM part.
Any advise would be sincerely appreciated, thank you.
Regards,
