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Mbrp Installed - But ...
#1
So I had the MBRP installed last night, but to avoid removing the second cat they recommended I install the system without the MBRP resonator - so basically the 2.25" pipe starts near the rear axle with only the two cats in front of it and only the muffler aft of it.

It actually sounds pretty good, although there's a couple of points where there's a bit of buzz ... but during my first highway run this morning the "check gas cap" light came on.

This is half way through a tank of gas so I have to assume it's something to do with the exhaust install and not actually a problem with the gas cap. I did re and re the cap a couple of times but the light wouldn't reset.

Is this due to the reduced back pressure because there's no resonator (and therefore re-installing it would fix) or do you think something else is at work here?

Thanks for everyone's input.
2008 Fusion SEL MTX - DD1 * 2009 Fusion SEL - DD2 * 2007 Focus ZXW - R*I*P * 2004 Focus ZTW CD Silver - sold * 2004 Focus ZTW Black - sold * 2003 Focus ZTW Black - sold * 2001 Focus ZTW Gold - sold * 2000 Focus SE Wagon (ZTW option) - Black - sold * 2000 Focus SE Wagon (ZTW option) - Gold R*I*P

2003 Focus ZX5 infra-red Track Rat - R*I*P
2003 ZX5 CD Silver Track Rat - retired, but still in the driveway


New track rat: 2000 ZX3, Atlantic Blue * JRSC with lots more to come

* New Zetec crate motor - NFG - thanks Topspeed *
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#2
Could just be that the gas cap seal went bad. This happened to me a few years back, and as soon as i replaced the gas cap and reset the code things were good.
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#3
habmann,Mar 30 2007, 11:27 AM Wrote:Could just be that the gas cap seal went bad. This happened to me a few years back, and as soon as i replaced the gas cap and reset the code things were good.
[right][snapback]232515[/snapback][/right]
Hmmm ... I guess; but the car is only 3 months old with 8k and this happened literally 30 minutes of driving after the install -- one heck of a coincidence if they're not connected in some way.
2008 Fusion SEL MTX - DD1 * 2009 Fusion SEL - DD2 * 2007 Focus ZXW - R*I*P * 2004 Focus ZTW CD Silver - sold * 2004 Focus ZTW Black - sold * 2003 Focus ZTW Black - sold * 2001 Focus ZTW Gold - sold * 2000 Focus SE Wagon (ZTW option) - Black - sold * 2000 Focus SE Wagon (ZTW option) - Gold R*I*P

2003 Focus ZX5 infra-red Track Rat - R*I*P
2003 ZX5 CD Silver Track Rat - retired, but still in the driveway


New track rat: 2000 ZX3, Atlantic Blue * JRSC with lots more to come

* New Zetec crate motor - NFG - thanks Topspeed *
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#4
No gas cap light issues after the MBRP install for me either :huh:

AFAIK they don't come close to playing near the gas tank while doing the install...

Methinks you got a gas cap that went bad... hey I lost my fuel guage after the car had been in service for less than a year (and got the check gas cap warning light a week after the repair) stranger things have happened :ph34r:

NefCanuck
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#5
I've never had the gas cap light come on once, and I've got over 1000 KMs on the new exhaust so far.

That's just really weird, dude. Time for a run to the dealer methinks.
Daily driver 1: 2007 Jeep Wrangler Unlimited Sport "S"

33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.

Daily driver 2: 2006 Subaru Legacy GT

COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.
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#6
Gas caps are inexpensive. Its a good place to start without really opening the pocket book.
Focus man, Focus........ Team Psychological Disaster
2008 Taurus X to be modded.
2002 ZX5 parted out. Forever known as the "SLOCUS".

2010 Dyno #'s 102.96HP/105.84TQ
2011 Dyno #'s 111.44HP/115.17TQ
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#7
WARRANTY!!!!
focus gone - 2005 mazda 6 sport gt wagon - lovin it!!!!!!!!!!!!!!!!!!!
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#8
focusnme,Mar 30 2007, 06:38 PM Wrote:WARRANTY!!!!
[right][snapback]232549[/snapback][/right]
Warranty FTW - but meh, light went out while in stop and go traffic this aft.
2008 Fusion SEL MTX - DD1 * 2009 Fusion SEL - DD2 * 2007 Focus ZXW - R*I*P * 2004 Focus ZTW CD Silver - sold * 2004 Focus ZTW Black - sold * 2003 Focus ZTW Black - sold * 2001 Focus ZTW Gold - sold * 2000 Focus SE Wagon (ZTW option) - Black - sold * 2000 Focus SE Wagon (ZTW option) - Gold R*I*P

2003 Focus ZX5 infra-red Track Rat - R*I*P
2003 ZX5 CD Silver Track Rat - retired, but still in the driveway


New track rat: 2000 ZX3, Atlantic Blue * JRSC with lots more to come

* New Zetec crate motor - NFG - thanks Topspeed *
Reply
#9
After the light came on and you check and cap and top up with gas, did you reset it or wait for it to go out?
Yellow 2000 ZX3 - Tinted Windows, SVT Air Intake, MBRP Exhaust, NewEdge Performance 2.25" Flex Pipe, Focus Sport UDP, SVT Bumper, Ford Racing 9MM Wires, K&N Filter, XCal2 ECU Upgrade, Shorty Antenna, Ported Throttle Body
190,000 KM (120,000 Miles) and counting!
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#10
.... We have a check gas cap light ?

Am I special in the way I don't ? I've never seen it, even in start up / running the light test..

:|

That sounds really, really weird... Is it all good now ?
[Image: rivalphotographygf0.jpg]
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#11
ex1z7,Apr 1 2007, 06:09 PM Wrote:.... We have a check gas cap light ?

Am I special in the way I don't ? I've never seen it, even in start up / running the light test..

:|

That sounds really, really weird... Is it all good now ?
[right][snapback]232793[/snapback][/right]

On the 2000-2004 Foci it's the CEL. On 2005+ Foci there's a new spot for that alert on the gauge cluster.
Daily driver 1: 2007 Jeep Wrangler Unlimited Sport "S"

33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.

Daily driver 2: 2006 Subaru Legacy GT

COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.
Reply
#12
NOS2Go4Me,Apr 1 2007, 06:14 PM Wrote:
ex1z7,Apr 1 2007, 06:09 PM Wrote:.... We have a check gas cap light ?

Am I special in the way I don't ? I've never seen it, even in start up / running the light test..

:|

That sounds really, really weird... Is it all good now ?
[right][snapback]232793[/snapback][/right]

On the 2000-2004 Foci it's the CEL. On 2005+ Foci there's a new spot for that alert on the gauge cluster.
[right][snapback]232797[/snapback][/right]

Light went out on its own (I did take the cap off and put it back on) and then after about 20 minutes of slow driving it went out - and hasn't reappeared yet.

2008 Fusion SEL MTX - DD1 * 2009 Fusion SEL - DD2 * 2007 Focus ZXW - R*I*P * 2004 Focus ZTW CD Silver - sold * 2004 Focus ZTW Black - sold * 2003 Focus ZTW Black - sold * 2001 Focus ZTW Gold - sold * 2000 Focus SE Wagon (ZTW option) - Black - sold * 2000 Focus SE Wagon (ZTW option) - Gold R*I*P

2003 Focus ZX5 infra-red Track Rat - R*I*P
2003 ZX5 CD Silver Track Rat - retired, but still in the driveway


New track rat: 2000 ZX3, Atlantic Blue * JRSC with lots more to come

* New Zetec crate motor - NFG - thanks Topspeed *
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