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-   -   official limping me crazy (http://forum.e46fanatics.com/showthread.php?t=937921)

spikester550 08-10-2012 05:13 AM

official limping me crazy
 
Hey guys so my 330 is driving me crazy. It goes into limp mode when I'm usually going mph+ and throws a p1620 and a p1500 codes but not all the time people where saying maf or map? Idk is just driving me crazy. Anyone know or can point me in the right direction?

spikester550 08-10-2012 09:18 AM

Ttt

spikester550 08-10-2012 06:06 PM

Bump

spikester550 12-12-2013 08:38 PM

plz anyone still driving me nuts somewhat i think it may have to do with the battery? idk i have replaced the idle air control valve

2003silver330i 12-13-2013 01:29 AM

The code P1620 has to do with a bad thermostat. Replace it with a genuine OEM thermostat. Concerning the P1500 code I see that you are using a K&N CAI which could be contributing to the P1500 code. If it was my car the first thing I would do is clean the MAF sensor and MAF connector with a cleaner specifically made for the MAF sensor. Next I would clean the connector to the ICV. If none of that stuff clears the code then remove the K&N CAI and put the stock air filter box back in and clean the MAF sensor one last time.

FooFighter94 12-13-2013 01:37 AM

Quote:

Originally Posted by 2003silver330i (Post 15886854)
The code P1620 has to do with a bad thermostat. Replace it with a genuine OEM thermostat. Concerning the P1500 code I see that you are using a K&N CAI which could be contributing to the P1500 code. If it was my car the first thing I would do is clean the MAF sensor and MAF connector with a cleaner specifically made for the MAF sensor. Next I would clean the connector to the ICV. If none of that stuff clears the code then remove the K&N CAI and put the stock air filter box back in and clean the MAF sensor one last time.

This^
Often times, CAIs which need to be oiled regularly cause MAF problems. I have heard of the oil gunking up the MAF and even destroying it. Never used one so can't say for sure.

2003silver330i 12-13-2013 01:45 AM

If none of those suggestions work then you most likely have a wiring issue.

spikester550 12-13-2013 07:13 PM

Quote:

Originally Posted by 2003silver330i (Post 15886862)
If none of those suggestions work then you most likely have a wiring issue.

well i am using a light weight battery the maf is as clean as a wistle and thermo was changed about 4 months ago and i have had this issue longer. some people were saying it might be the batt?

lszlszx 12-13-2013 08:08 PM

The battery can cause limp mode if voltage is too low.
Did you use a generic code reader to scan?

The one reason why I would ever take my car to the dealer is
for diagnosis. It doesn't cost too much and it can save you head ache.

You posted this over a year ago. How often does the car go into limp mode?

spikester550 12-14-2013 12:18 AM

Quote:

Originally Posted by lszlszx (Post 15888648)
The battery can cause limp mode if voltage is too low.
Did you use a generic code reader to scan?

The one reason why I would ever take my car to the dealer is
for diagnosis. It doesn't cost too much and it can save you head ache.

You posted this over a year ago. How often does the car go into limp mode?

yeah just a generic code reader. i have been having it off ona dn on but just recently it got worse but it always happens if i keep the throttle steady on a certain speed so its annoying as hell on the freeway lol :banghead:

2003silver330i 12-14-2013 01:15 AM

Quote:

Originally Posted by spikester550 (Post 15888968)
yeah just a generic code reader. i have been having it off ona dn on but just recently it got worse but it always happens if i keep the throttle steady on a certain speed so its annoying as hell on the freeway lol :banghead:

Bear with me I'm just throwing some ideas out there. Have you tried clearing the codes and unplugging the MAF to see if the car still goes into limp mode?

jfoj 12-19-2013 09:06 AM

Might want to check toward the end of this thread - http://forum.e46fanatics.com/showthr...ighlight=p1500

The person had intermittent P1500 and after a long time chasing it, turned out it appeared the 12V MAF supply wiring had a break in it. He also has CAI as well.

I see you have a lot of mods on your car, so not sure if and why the wire broke on that car. I know all about the trunk wiring harness breaking at the hinge location, but the MAF wiring should not have a lot of movement and should not break, but maybe the German wiring was not annealed enough and constant heat and vibration cause fractures in the wiring??

Just something to consider.

spikester550 01-04-2014 09:08 PM

official limping me crazy
 
So I did some research cause I was also getting terrible idle rpms. So I cleaned the mad careful and now Im starting to get maf codes so I'm guessing my maf is takin a dump. When I unplug the maf everything works well no idle or 1500 codes so I'm thinking it the maf and the wires? The battery seems to be tight and in good order. If anyone else has any other suggestions don't hesitate =]

Thx guys


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Weste46 01-04-2014 09:54 PM

Re: official limping me crazy
 
Swap back to your OE air box before anything. I had constant limp mode with P1500, unplugging MAF stopped limp mode. I ended up replacing my ICV and MAF, same codes. Finally swapped back to OE air box, never came back-until a few days ago when I put my CAI back on to check... definitely the intake in my case, and mine is an Apexi Power filter which is a dry filter.

spikester550 01-13-2014 09:26 PM

I can't put the oe air box on cause I'm supercharged. There is no room lol. What is a good way to test the maf or the wires for the maf?


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spikester550 01-15-2014 05:36 AM

bump if someone has an idea

spikester550 01-19-2014 06:51 AM

:bump: someone?

spikester550 01-24-2014 03:22 AM

=\


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spikester550 05-05-2014 11:45 PM

This week I'm going to throw money at the maf and the wiring harness since it seems that a wire or two looks exposed. Should I just replace the wires or cut back and shrink wrap? Money is not a problem I want it done right.


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