So my car has been flawless until I actually had to use it this morning to drive to a client meeting. Very odd, it was jerking back and forth at partial throttle, especially at low speeds, unless I used manual gear selecting mode. It threw a CEL on the way home. Any guesses as to what it will be? I find out at my service appointment tomorrow.
Jag tech on the forum's response:
Based on your description, it appears to be a misfire due to a failing or failed coil unit(s) that may be caused by engine oil seeping into the spark plug well.
Under no circumstances operate the vehicle if the MIL if flashing as damage to the catalytic converter(s) is occurring.
Posting in the banalist of threads since 2004
2017 Mazda CX-5 GT AWD Premium
Past: 2016 GMC Canyon All Terrain Crew Cab / 2010 Jaguar XFR / 2012 Acura RDX AWD Tech / 2008 Cadillac CTS / 2007 Acura TL-S / 1966 5.0 HO Mustang Coupe
2001 Lexus IS300 / 2004 2.8L big turbo WRX STI / 2004 Subaru WRX / A couple of old trucks
Sounds like a misfire but I have no idea why it would only happen in drive and not manu-matic mode? With my VW/BMW history I have blow many ignition coils over the years and its never mattered which gear its in, just throttle load and RPM.
Now: 07 Porsche Cayman S | 18 VW Tiguan
Then: 18 VW GTI Autobahn | 95 BMW M3 | 15 VW GTI SE | 12 Kia Optima SX | 2009 VW GTI | 00 BMW 540i Sport | 90 Mazda Miata | 94 Yamaha FZR600R | 1993 Suzuki GS500E | 2003 BMW 325i | 95 Saab 900S
Manual select mode keeping the RPMs up higher smoothing it out? Subarus and some of the Mitsubishi engines Chrysler used had a similar problem with the O rings below the coil packs failing and letting oil from the valve covers down in.
Jeff Morrison - Used Car Manager
Woodstock Garage, Inc.
Chrysler - Dodge - Jeep - RAM
Current Stable of Mopar Junk
57 Chrysler Windsor 4drHT - 67 Dodge D100 Short Bed Step Side - 71 Dodge Challenger - 91 Chrysler Lebaron LX 33k mile Survivor - 91 Dodge Dakota V8 - 05 Chrysler Crossfire Roadster - 08 Ram 2500 Cummins
The tech Chris seems pretty bullish on it after I dropped it off. There is an ECU mapping update he said that has fixed some of them but also said that it could be carbon fouling already. This was also suggested by a Jag tech on the forums so I am curious to see what it ends up as.
Posting in the banalist of threads since 2004
2017 Mazda CX-5 GT AWD Premium
Past: 2016 GMC Canyon All Terrain Crew Cab / 2010 Jaguar XFR / 2012 Acura RDX AWD Tech / 2008 Cadillac CTS / 2007 Acura TL-S / 1966 5.0 HO Mustang Coupe
2001 Lexus IS300 / 2004 2.8L big turbo WRX STI / 2004 Subaru WRX / A couple of old trucks
if it is carbon....provided its not so far gone you have to pull the heads, I would start putting BG44K in your tank at intervals. great de-carboner for port injected stuff.
![[Image: 41flO9Ox4yL.jpg]](http://ecx.images-amazon.com/images/I/41flO9Ox4yL.jpg)
2010 Civic Si
2019 4Runner TRD Off-Road
--------------------------
Past: 03 Xterra SE 4x4 | 05 Impreza 2.5RS | 99.5 A4 Quattro 1.8T | 01 Accord EX | 90 Maxima GXE | 96 Explorer XLT
ScottyB Wrote:if it is carbon....provided its not so far gone you have to pull the heads, I would start putting BG44K in your tank at intervals. great de-carboner for port injected stuff.
It's direct injected so this stuff wouldn't work. Direct injection is the reason newer motors have problems with carbon buildup on the intake valves.
2015 VW GTI | 2007 4Runner Sport
SOLD
2010 Nissan 370z | 2003 BMW M3
2005 Subaru WRX | 2010 BMW 135i | 1999 BMW M3
2002 Pontiac Trans Am WS6 | 2006 Mitsubishi Evolution IX SE
1995 Pontiac Firebird Formula | 1998 Mitsubishi Eclipse GSX | 1996 Pontiac Firebird
The tech did mention they have a new treatment they are using in the intake that is basically like seafoam. But yeah I won't know what it is for sure until I get a call back from them.
Posting in the banalist of threads since 2004
2017 Mazda CX-5 GT AWD Premium
Past: 2016 GMC Canyon All Terrain Crew Cab / 2010 Jaguar XFR / 2012 Acura RDX AWD Tech / 2008 Cadillac CTS / 2007 Acura TL-S / 1966 5.0 HO Mustang Coupe
2001 Lexus IS300 / 2004 2.8L big turbo WRX STI / 2004 Subaru WRX / A couple of old trucks
Got the call, borked MAF sensor. Covered under warranty no big deal. Interesting it would go so soon, I'll see if they have any more details in the morning.
Posting in the banalist of threads since 2004
2017 Mazda CX-5 GT AWD Premium
Past: 2016 GMC Canyon All Terrain Crew Cab / 2010 Jaguar XFR / 2012 Acura RDX AWD Tech / 2008 Cadillac CTS / 2007 Acura TL-S / 1966 5.0 HO Mustang Coupe
2001 Lexus IS300 / 2004 2.8L big turbo WRX STI / 2004 Subaru WRX / A couple of old trucks
MAF's are so weird, I had a Ranger leave me sit one time because a piece of a dead bug got stuck on the MAF.
Jeff Morrison - Used Car Manager
Woodstock Garage, Inc.
Chrysler - Dodge - Jeep - RAM
Current Stable of Mopar Junk
57 Chrysler Windsor 4drHT - 67 Dodge D100 Short Bed Step Side - 71 Dodge Challenger - 91 Chrysler Lebaron LX 33k mile Survivor - 91 Dodge Dakota V8 - 05 Chrysler Crossfire Roadster - 08 Ram 2500 Cummins
Glad they figured it out... I agree with Jeff on the MAFs-are-weird comment. In general MAFs seem incredibly touchy. Weird to me that it only hiccup'd in automatic mode and not manumatic.
Now:
'16 Ram 1500 | '97 BMW M3 | Some Press Loan
Then:
87 BMW 325e | 91 BMW 535i | 96 BMW 328i | 95 BMW 325i | 95 Mazda Miata | 13 Focus ST | 09 BMW 128i | 00 Pontiac Firebird | 05 Yukon Denali | 96 BMW 328iC | 11 Ford F-150 | 06 BMW M3 | 10 Range Rover SC | '03 Ford Ranger | '18 Ford F-150 | '01 BMW X5 | '98 Volvo S70 T5M
Code was P0101 Mass Air Flow Sensor Fault. Car runs and pulls like a raped ape, better than I ever remember it ha. It never felt super "off" but lately it was a little hesitant on power delivery and that makes more sense. I just assumed the ECU was adjusting to the x-pipe. Would have been a $425 fix out of warranty, instead it cost me $16 for sales tax. Extended warranty literally kicked in 3 days ago and first incident has already paid for almost 1/4 of it. Have that transferable until 2019 or 100,000 miles 
Posting in the banalist of threads since 2004
2017 Mazda CX-5 GT AWD Premium
Past: 2016 GMC Canyon All Terrain Crew Cab / 2010 Jaguar XFR / 2012 Acura RDX AWD Tech / 2008 Cadillac CTS / 2007 Acura TL-S / 1966 5.0 HO Mustang Coupe
2001 Lexus IS300 / 2004 2.8L big turbo WRX STI / 2004 Subaru WRX / A couple of old trucks
For all the tempermental-ness and black magic that seems to surround MAFs I've never actually had a failure. I think I had to do some soldering fix on the Miata's AFM to get it to run properly, but all my other cars have been fine. I do like to hose them down with MAF cleaner whenever I take an intake apart, maybe that helps.
Now: 07 Porsche Cayman S | 18 VW Tiguan
Then: 18 VW GTI Autobahn | 95 BMW M3 | 15 VW GTI SE | 12 Kia Optima SX | 2009 VW GTI | 00 BMW 540i Sport | 90 Mazda Miata | 94 Yamaha FZR600R | 1993 Suzuki GS500E | 2003 BMW 325i | 95 Saab 900S
Hmm that reminds me I should clean mine
Sent from my SM-G900V using Tapatalk
MAF? you guys and your new cars... lol
#99 - 2000 Civic Si (Future H2 Car, Former H1 car)
IPGparts.com, AutoFair Honda, Amsoil, QuikLatch Fasteners
NASA-MA Tech Inspector (Retired)
MAF has been around since the 80's.
(09-25-2019, 03:18 PM)V1GiLaNtE Wrote: I think you need to see a mental health professional.
.RJ Wrote:MAF has been around since the 80's.
Seriously, L-Jetronic came out in, what? 1974? MAF and MAP aren't like, descendants, just two ways of solving a problem.
1987 Oldsmobile Cutlass 442
shit, even kaaniepoo's beloved Mk1 vw's had MAF sensors...
1987 Oldsmobile Cutlass 442
CaptainHenreh Wrote:shit, even kaaniepoo's beloved Mk1 vw's had MAF sensors... CEL genesis?
Why do people just post what they are thinking? Without thinking.
2012 Ford Mustang
1995 BMW 540i/A
1990 Eagle Talon TSI AWD
Be nice to Kaan, guys. He's off his meds again.
My Scirocco had a side draft carb conversion... and no MAF or MAP.
I'm about to jinx myself... but none of my Honda turds and their hundreds of thousands of miles had a MAP issue (because they don't have MAF). :dunno:
now back to fixing the Shaguar!
![[Image: anigif_enhanced-buzz-16993-1369165785-3.gif]](http://ak-hdl.buzzfed.com/static/enhanced/webdr06/2013/5/21/15/anigif_enhanced-buzz-16993-1369165785-3.gif)
#99 - 2000 Civic Si (Future H2 Car, Former H1 car)
IPGparts.com, AutoFair Honda, Amsoil, QuikLatch Fasteners
NASA-MA Tech Inspector (Retired)
|
