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Author
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Topic: Need help! Too much fuel!
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blown95svt
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Member # 8893
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posted
 
 
Ok I have a 95 cobra with a s-trim and just intalled h/c/I and 42#. Injectors, now the problem is it won't start unless I hold it to the floor and then it runs like shit! And I pull the plugs and the are wet with fuel. I have a c&l maf with the right sampletube, please anyone that might k ow what it could be please help!
Thanks!
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95 cobra blown 331 gr40 suspension
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Posts: 1434 | From: roseville | Registered: Jan 2009
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BlowN67
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Member # 4229
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u have an adj fuel pressure regulator?
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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blown95svt
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Member # 8893
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Yes I've tried ajusting it also, from 20lbs to 40lbs no difference, I had the car idleing the other day with out the blower or maf hooked up and it ran and idled, now with the blower hooked up and the maf hooked up it runs like poo! I have fuel vapor coming out of the filled neck like crazy, could it be the actual maf sensor?
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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blown95svt
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Member # 8893
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Ok so I pulled the plugs out and cranked it over to clear the motor out and then let it sit for a bit to let it air out, then disconnected the maf and it seems to idle, so that would seem to be the maf sensor right?
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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JohnB
Tech Moderator
Member # 969
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posted
Yes, MAF is no bueno.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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blown95svt
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Member # 8893
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posted
Ok swapped sensors and still the same result and a have a a3m computer wich is a fox computer and I have a c&l with should work?
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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94AFRCobra
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Member # 9097
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forgive my ignorance, what is a H/C/I? Anyway, check your coolant temp sensor, make sure it is plugged in, also check your air temp sensor, make sure it is plugged in and working correctly also. Both sensors can cause this problem, with incorrect readings.
Posts: 24 | From: Sacramento | Registered: Apr 2009
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blown95svt
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Member # 8893
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posted
They are both plugged in and was all in working condition when pulled apart, running gt40x heads, custom cam and a systemax intake
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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whitelx91
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Member # 8317
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quote:
Originally posted by 94AFRCobra:
forgive my ignorance, what is a H/C/I? Anyway, check your coolant temp sensor, make sure it is plugged in, also check your air temp sensor, make sure it is plugged in and working correctly also. Both sensors can cause this problem, with incorrect readings.
These sensors arnt doing a damn thing for 2 minutes after startup so initially they wouldnt be the problem. There not used until the ecm switches into closed loop mode.
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SuistangS
Posts: 380 | From: Sacramento Ca. | Registered: Apr 2008
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whitelx91
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Member # 8317
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Hey B you sure you didnt mess with the tps? I wonder if we should do a leakdown to see if that runner is leaking. You never know.
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SuistangS
Posts: 380 | From: Sacramento Ca. | Registered: Apr 2008
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blown95svt
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Member # 8893
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posted
I'm stumped! What's the difference in a fox and a sn95 style meter? Maybe my car needs a sn95 style electronics? But then again it has a a9l in it? What's the difference in low/high impedance injectors? Maybe I need one or the other?
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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whitelx91
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Member # 8317
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posted
quote:
Originally posted by blown95svt:
I'm stumped! What's the difference in a fox and a sn95 style meter? Maybe my car needs a sn95 style electronics? But then again it has a a9l in it? What's the difference in low/high impedance injectors? Maybe I need one or the other?
Not much i believe the only difference is the temperature at witch they run, low imp injectors run at higher temps then high imp. I dont think it should matter.
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SuistangS
Posts: 380 | From: Sacramento Ca. | Registered: Apr 2008
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94AFRCobra
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Member # 9097
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posted
93 and earlier ECM's use different pinouts at the ECM than 94/95. They are not interchangeable without modifications to the wiring. Also is MAF calibrated for the 42# injectors?
Posts: 24 | From: Sacramento | Registered: Apr 2009
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blown95svt
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Member # 8893
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posted
My car has the pro-m swap, the car was running and driving and smogged before I pulled it apart to pull the heads/cam/intake on with the 42's and the c&l with the 42lb sample tube.
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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94AFRCobra
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Member # 9097
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OK. So when you disconnect the MAF, the car will run, right? If thats the case it doesnt sound like a mechanical problem. What exactly did you change besides the intake and injectors, if anything?
Posts: 24 | From: Sacramento | Registered: Apr 2009
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blown95svt
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Member # 8893
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Yes with the maf unhooked it is still hard to start but I can get the car to idle, can't really rev it up or drive it but it idles. Hook the maf up and it is hard to start and if it does it runs really rough and just isn't right, if you crank it with out flooring it ( flooring the pedals cuts off the injector pulse) it will just foul out the plugs, they are soak with has. I changed my heads,cam,intake manifold and swapped 36lb and a pro-m to 42lb and a c&l. Just don't get what would cause it to dump that much fuel! I get this smoke coming out of the fillrneck that smellslike raw fuel! I'm gonna try putting. Set of stock 19lb injectors and a stock maf to seekf it will run right, if it does then at least I know it's inthe injectors of maf.
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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stangin'
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Member # 514
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i;ve always read that those c&l maf are hit or miss with their sample tubes. try borrowing someone's maf calibrated for 42lbers and see if there's a difference.
Posts: 2993 | From: Bay Area | Registered: Oct 2001
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94AFRCobra
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Member # 9097
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posted
you are getting raw fuel "smoke" out the fuel filler or oil filler? If it is the oil filler, you may have washed the cylinders from all the excess fuel and the oil is most likely fuel contaminated.
Posts: 24 | From: Sacramento | Registered: Apr 2009
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blown95svt
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Member # 8893
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posted
Ya it's coming fromthe oil filler neck, and the oil does have fuel in it, I will be bringin oil home with me tomorrow to change it. I will try to see if I can borrow a maf from somebody, is it just the sample tubes that are screwed up?
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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