Warning light

manufc4eva · 07-24-2009, 03:42 PM

Whilst overtaking in second i got carried away and accidentally red lined it to 7k rpm. After this an amber engine light came on the one that means half power available take it easy and get your engine checked. The light has now cleared since the engine has been of. Is this just precautionary or i should be worried. Car is 135i btw.

Thanks for any replies

jibaholic101 · 07-24-2009, 06:31 PM

half power, that isnt good... usually this is associated with HPFP failure, but i am not sure

jeremyc74 · 07-24-2009, 06:50 PM

Quote:

Originally Posted by jibaholic101

half power, that isnt good... usually this is associated with HPFP failure, but i am not sure

Yep.
Could be a lot of things causing it, but the HPFP is certainly the most common. Just running it up to redline certainly shouldn't bring on reduced power.

manufc4eva · 07-24-2009, 07:37 PM

ye but the car feels fine since. is the light not just a precautin because ive encroached the redline slightly?

JohnL135I · 07-24-2009, 08:07 PM

Quote:

Originally Posted by manufc4eva

ye but the car feels fine since. is the light not just a precautin because ive encroached the redline slightly?

No. The car will cut fuel if you red line the motor. Depending on the outside temp and octane you could have had a miss fire in a cylinder, or one of many other things. The code is stored in the computer.

Your choices now, take to the dealer and have code read, or drive the car until it duplicates the problem, which might not happen.

I would take it to the dealer. I would hate to be overtaking a car and loose all power.

You might also consider buying a code reader. I have one and its the best purchase I have ever made for the car.

manufc4eva · 07-25-2009, 05:28 AM

Thanks for the advice, would the dealer know whats caused it do you think? And therefore refuse do anything under warranty?

IDBMW · 07-25-2009, 06:50 AM

I had pretty much the same thing happen. About a month ago I was heading up to some land of mine in the mountains to meet with surveyor and was just started the climb up a grade when the instrument panel lights up like a Christmas tree. I get the ½ engine light and hardly any power. I pulled over and turned off/on the car but still had the ½ engine light. I went back home and took my truck up. When I got back home from my journey I started the car and it ran fine. I called the dealer and they wanted to look at the codes. Turns out I had a cylinder 2 misfire. They swapped the spark plug, coil and coil wire with cylinder 4. Problem has not come back. I questioned the SA about the HPFP issue and he told me the computer only stores the last couple of codes and it was a cylinder 2 misfire that showed up. It could be the HPFP but shows up as a cylinder 2 misfire. I am sure our car has many sensors/checks going on and it only takes on sensor burp to mess the whole system up.

manufc4eva · 07-25-2009, 12:11 PM

forgive me for my lack of knowledge but is this something u had 2 get fixed or sorted? is a misfire serious?

07-24-2009, 03:42 PM	#1
manufc4eva Private 2 Rep 64 Posts Drives: 135i coupe Join Date: Oct 2008 Location: Manchester iTrader: (0)	Warning light Whilst overtaking in second i got carried away and accidentally red lined it to 7k rpm. After this an amber engine light came on the one that means half power available take it easy and get your engine checked. The light has now cleared since the engine has been of. Is this just precautionary or i should be worried. Car is 135i btw. Thanks for any replies
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07-24-2009, 06:31 PM	#2
jibaholic101 Brigadier General 160 Rep 3,496 Posts Drives: women wild Join Date: Nov 2008 Location: Charleston, SC iTrader: (0)	half power, that isnt good... usually this is associated with HPFP failure, but i am not sure __________________ some italian, german, and japanese ones; and on order more of the same
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07-24-2009, 07:37 PM	#4
manufc4eva Private 2 Rep 64 Posts Drives: 135i coupe Join Date: Oct 2008 Location: Manchester iTrader: (0)	ye but the car feels fine since. is the light not just a precautin because ive encroached the redline slightly?
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07-25-2009, 05:28 AM	#6
manufc4eva Private 2 Rep 64 Posts Drives: 135i coupe Join Date: Oct 2008 Location: Manchester iTrader: (0)	Thanks for the advice, would the dealer know whats caused it do you think? And therefore refuse do anything under warranty?
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07-25-2009, 06:50 AM	#7
IDBMW Captain 41 Rep 825 Posts Drives: 2019 X3 M40i Join Date: Mar 2008 Location: Boise, ID iTrader: (0)	I had pretty much the same thing happen. About a month ago I was heading up to some land of mine in the mountains to meet with surveyor and was just started the climb up a grade when the instrument panel lights up like a Christmas tree. I get the ½ engine light and hardly any power. I pulled over and turned off/on the car but still had the ½ engine light. I went back home and took my truck up. When I got back home from my journey I started the car and it ran fine. I called the dealer and they wanted to look at the codes. Turns out I had a cylinder 2 misfire. They swapped the spark plug, coil and coil wire with cylinder 4. Problem has not come back. I questioned the SA about the HPFP issue and he told me the computer only stores the last couple of codes and it was a cylinder 2 misfire that showed up. It could be the HPFP but shows up as a cylinder 2 misfire. I am sure our car has many sensors/checks going on and it only takes on sensor burp to mess the whole system up. __________________ 2019 X3 M40i - Black Sapphire Metallic - Mocha Lather - 21" 718M wheels - Every option except Sun Shade
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07-25-2009, 12:11 PM	#8
manufc4eva Private 2 Rep 64 Posts Drives: 135i coupe Join Date: Oct 2008 Location: Manchester iTrader: (0)	forgive me for my lack of knowledge but is this something u had 2 get fixed or sorted? is a misfire serious?
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