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post #1 of 12 Old September 29th, 2010, 11:51 PM Thread Starter
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Rich in Bank 1 & 2

Okay, gay first of all. Because my CEL is on again. BUT, its really not that big of a deal. I threw a code for Rich in bank 1 and 2, I forget the acual codes.

The other day it threw it for Bank 1, and the P0190 (fuel rail sensor) cleared it, then came back on and just Rich in bank 1 and 2.

Possible vacuum leak somewhere? I know some lines can cause it to run rich, but most would be lean. So which ones can I check? My intercooler piping seems fine, no leaks.

Could it acually be my fuel rail sensor? Ill have to view live data to see what my fuel pressure looks like to see if its bouncing around like crazy, or steady.

Sorry for posting another thread, Im bored, Its late out so I figured Id ask you guys and see whatsup before I go look for leaks.


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post #2 of 12 Old September 29th, 2010, 11:56 PM
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could be vaccum leak that's what caused mine to run rich, try looking at the hoses around the plenum.

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post #3 of 12 Old September 29th, 2010, 11:57 PM Thread Starter
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Yea right before I read that I was just thinking...maybe the hose on the back of the plenum? Im goin to check now


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post #4 of 12 Old September 30th, 2010, 12:00 AM
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that's usually one of the first places i check

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post #5 of 12 Old September 30th, 2010, 12:04 AM Thread Starter
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It was dark out, it looked like it wasnt on all the way, but I didnt get a good enough look at it before I pulled it off. But its on there now.

What other lines are there around the plenum that would cause it ro run rich? Basically any that go in after the throttle body right? But idk what else


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post #6 of 12 Old September 30th, 2010, 01:14 AM Thread Starter
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Anyone else have any other ideas? What other vacuum lines can I check? Im glad its rich and not lean though lol. This happend after I fixed my O2 sensor (wire was unplugged from harness) so I was working on top of the motor. So something had to have happend there, unless my fuel rail pressure sensor is shot. But its only threw the code for it once. Thanks guys


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03 Mustang GT Vortech - 11.98 @ 118.68
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post #7 of 12 Old September 30th, 2010, 02:05 AM
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you said you can view live data, check and see what temp the coolant temp sensor is giving off. If that is going out, it will slowly start causing a rich concern

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post #8 of 12 Old September 30th, 2010, 02:20 AM
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i just thought of something, im not sure what set up your running for your supercharger but could maybe one of your line's be off somewhere around it?
Not too sure if that will make it run rich but you never know.

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post #9 of 12 Old September 30th, 2010, 02:50 AM
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i know mine was leaking by the iac hoses had to clamp them with blow thru set up.

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post #10 of 12 Old September 30th, 2010, 04:00 AM
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are you blow thru? is so check down stream maf piping

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post #11 of 12 Old September 30th, 2010, 10:27 AM Thread Starter
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Cool thanks guys, Ill check that stuff out after work.

86er I have an SCT so I can datalog, but I think I can check the coolant temp sensor.


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Previous Cars
13 Mustang GT Bolt Ons - 11.58 @ 122.13
03 Mustang GT Vortech - 11.98 @ 118.68
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post #12 of 12 Old September 30th, 2010, 08:59 PM Thread Starter
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bumpys!!!!!!


2009 Corvette Z06
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13 Mustang GT Bolt Ons - 11.58 @ 122.13
03 Mustang GT Vortech - 11.98 @ 118.68
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