Limp Mode..what's causing it?

rideelement247 · 03-02-2008, 03:53 PM

Quote:

Originally Posted by cn555ic

Just remove the green plug and see the wires underneath what they look like...is it kinked or bent! Thats what happen to me...I checked all my wires but not the wires underneath the green plug...Well long story short started to de-install the Procede and the last wires was the green plug wires...Too out the plug to see the power wire connection to the orange wire was kinked to the point that there was sometimes connection and sometimes none!!!

I now really want to check it but don't want to peel my car apart again

.

Oh a tadbit of interesting info... You know that 1" in diameter plastic tube that runs over the engine and into the ECU box?(it holds wires inside) It was kinda crimped by one of the clips that hold it off of the engine. Of course I couldn't see inside but I don;t think any of the wires are messed up.

cn555ic · 03-02-2008, 04:05 PM

Quote:

Originally Posted by rideelement247

I now really want to check it but don't want to peel my car apart again

.

Oh a tadbit of interesting info... You know that 1" in diameter plastic tube that runs over the engine and into the ECU box?(it holds wires inside) It was kinda crimped by one of the clips that hold it off of the engine. Of course I couldn't see inside but I don;t think any of the wires are messed up.

Yeah even if it was crimped those wires are pretty thick in guage, so I doubt that would be your issue...I just don't understand why you put everything back without checking that green plug wires!! You need to look into that before you rule out everything...I understand your frustration, because I also check all the wires like 9 times, but never looked at the green plug wires because I thought it was the ecu wires!!! 9 times until i decided to unsinstall it because I thought it was a Fuel Pump for sure!!!

rideelement247 · 03-02-2008, 04:52 PM

Quote:

Originally Posted by cn555ic

Yeah even if it was crimped those wires are pretty thick in guage, so I doubt that would be your issue...I just don't understand why you put everything back without checking that green plug wires!! You need to look into that before you rule out everything...I understand your frustration, because I also check all the wires like 9 times, but never looked at the green plug wires because I thought it was the ecu wires!!! 9 times until i decided to unsinstall it because I thought it was a Fuel Pump for sure!!!

I've been out driving on the bypass plugs. The car shakes really bad but I couldn't induce a limp mode. On a scale of 1 - 10, 10 being the intensity of the shake during limp mode, the shakes are about a 7. Of course this is on an 08 coupe with the supposed "HPFP"

. I am going to have it taken in tomorrow and hopefully get the ball rolling on it being fixed. At the least I will know what is wrong with it.

rideelement247 · 03-02-2008, 04:53 PM

PS: It obviously isn't the green wire if I am shaking, correct? I assume this as the ECU signals are now looping back to their original destination rather than the Procede.

cn555ic · 03-02-2008, 11:41 PM

Quote:

Originally Posted by rideelement247

PS: It obviously isn't the green wire if I am shaking, correct? I assume this as the ECU signals are now looping back to their original destination rather than the Procede.

No not the power wire...its still no bypassed..just the ECU wires are bypassed!

rideelement247 · 03-03-2008, 03:56 PM

Quote:

Originally Posted by cn555ic

No not the power wire...its still no bypassed..just the ECU wires are bypassed!

Just checked it and it is fine. So now its not the Procede.

Now its the mission to turn the car back to stock...

Numb3rs · 03-03-2008, 04:47 PM

Quote:

Originally Posted by rideelement247

You think I could just throw the bypass plugs in to make sure that way? I would prefer to not rip off a bunch of heat shrink and try and mess around for something unrelated.

Would it really be the fuel pump if it is only occuring around 3k RPMs? Once I hit limp it sure as hell feels like a bad fuel pump, but other than that it would give off one or two shakes a day, and nothing as extreme as that. I haven't had any signs of the fuel pump going out and now it just goes? I was expecting more of a show before it died

.

Also, would the car be OK to drive until I could bring it in? I haven't read of anyone's car completely dying on the road. Is this a possibility, though?

My friend, you have installed a product that intercepts engine signals and deceives the ECU for the sake of more horsepower! How would you feel your Procede is "unrelated" to an engine problem?

If your getting limp modes, one of the reason people say they like the Procede is the "ease" of installation. So why are you so hesitant from removing the Procede, to see if it is indeed, the root problem?

Fill you tank up with 93 octane also. I see you run a lot of 105 octane and this is not necessarily a problem, but when trouble shooting, you need to normalize everything. Then go from there.

cn555ic · 03-03-2008, 04:47 PM

damn I was hoping it was that problem for you!! Oh well I hope everything turns out good for you!

rideelement247 · 03-03-2008, 05:02 PM

Quote:

Originally Posted by cn555ic

damn I was hoping it was that problem for you!! Oh well I hope everything turns out good for you!

Yea, thanks. This car has been a hassle. First a dead battery, now a dead fuel pump. I fear this car once it is over the 40k mile mark or 4 yrs and we are out of warranty what will happen then? Cylinders overheated and fused with your engine? So early in the game and lots of people having fuel pump issues. Shit, I really don't want to pay for a new one after warranty

.

rideelement247 · 03-03-2008, 05:46 PM

Quote:

Originally Posted by Numb3rs

My friend, you have installed a product that intercepts engine signals and deceives the ECU for the sake of more horsepower! How would you feel your Procede is "unrelated" to an engine problem?

If your getting limp modes, one of the reason people say they like the Procede is the "ease" of installation. So why are you so hesitant from removing the Procede, to see if it is indeed, the root problem?

Fill you tank up with 93 octane also. I see you run a lot of 105 octane and this is not necessarily a problem, but when trouble shooting, you need to normalize everything. Then go from there.

The Procede is practically uninstalled. Also, the Procede is not increasing voltage to the pump that it cannot handle. True, it might have expedited the process of the weak fuel pump, but still stock cars are experiencing the failed pumps.

03-02-2008, 04:53 PM	#26
rideelement247 Lieutenant Colonel 59 Rep 1,677 Posts Drives: 08 335i, 67 Camaro SS Join Date: May 2007 Location: South Florida iTrader: (2)	PS: It obviously isn't the green wire if I am shaking, correct? I assume this as the ECU signals are now looping back to their original destination rather than the Procede. __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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03-03-2008, 04:47 PM	#30
cn555ic 460 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	damn I was hoping it was that problem for you!! Oh well I hope everything turns out good for you!
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