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Topic: tbird is doing 10MPG HELP!!!!! (Read 2329 times) previous topic - next topic

tbird is doing 10MPG HELP!!!!!

Reply #15
Quote from: 84 Fila;152818
I got a set of explorer injecters if ya need


those are blue top (24lbs), right?
1979 Ford Fairmont
[/B]
5.0L/4R70W/8.8"/5-lug/3" Exhuast


tbird is doing 10MPG HELP!!!!!

Reply #16
i dunno how to pull codes guys.
[SIGPIC][/SIGPIC]5.0 Standard
REBUILT MUSTANG AOD
Magnaflow mustang exhaust
BBK shorties
mark vii h pipe
BBK intake
KYB shocks , struts
moog springs

tbird is doing 10MPG HELP!!!!!

Reply #17
3 ways for you
1.There is a way to self test in the link that jcassity posted. It's section 5 on his index.

2.You can purchase a scan tool at parts stores for around $30 that all you do is follow the instructions in the book and count the blinks.

3.Also AutoZone does a free code scan that you can just go up to the counter and ask them to scan your car for you.

tbird is doing 10MPG HELP!!!!!

Reply #18
o0o nice thanks for the input
[SIGPIC][/SIGPIC]5.0 Standard
REBUILT MUSTANG AOD
Magnaflow mustang exhaust
BBK shorties
mark vii h pipe
BBK intake
KYB shocks , struts
moog springs

tbird is doing 10MPG HELP!!!!!

Reply #19
You can also just turn the key on.

Take a long screwdriver, or pipe, and place it on each injector, ( to the best of your ability ) and listen for the fuel,

Or get a fuel pressure gauge, and turn the key on and see if your fuel pressure drops drasticly within the first 30 Seconds of turn off the key

tbird is doing 10MPG HELP!!!!!

Reply #20
Something I haven't seen mentioned yet.  It could very well be a leaking Fuel Pressure Regulator.  Easy enough to check.  On the fuel rail for the injectors, you'll find a piece with a vacuum line attached.  Turn the key on and off several times to get it up to max fuel pressure, then go pull the vacuum line off and check to see if raw fuel is at that connection.  There should be nothing but AIR there.  If there is fuel coming out the nipple on the regulator, or a strong smell of fuel, chances are the diaphram in the regulator is punctured, and it's dumping fuel straight into the intake.  Notice any black smoke or stutter at low RPM?  Your favorite Autozone or Advance store will have the regulator.
:birdsmily:
(X2) '86 Thunderbird, 3.8L CFI, C5 Tranny
 
'92 F-150, 5.0L EFI (SD), M5OD Tranny, 3.08 Dif
 
'70 VW Beetle, 1780cc, twin Solex 43's.

 

tbird is doing 10MPG HELP!!!!!

Reply #21
Having a trans with direct drive and over drive might help also. :hick:
Project 3G: Grandpa Grocery Getter-'85 Crown Vic LTD 2-door, 351W with heavily ported/polished GT40 heads, heavily ported/polished Typhoon Power Plus upper & lower intake, Comp Cams 265DEH retarded 1*, FAST EZ-EFI, HD T5, 8.8" 3.73 trac lock with extra clutches, 3G alt. swap, '99 CVPI front brakes, '09 CVPI rear disc brakes, '00 CVPI booster&m/c + wilwood adj prop valve.

Parted & Gone-'88 T-bird Sport, 351W swap, ported GT40 heads