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Topic: TFI module going on a permanent lunch break?-SOLVED (Read 2099 times) previous topic - next topic

Problem solved...for now anyway

Reply #15
Well, I dumped some Lucas fuel injector cleaner in the car yesterday with a full tank of gas.  After letting it warm up and driving for a few miles it was running great.  Drove about 200miles today and it's still running like a bat out of hell...maybe I had some deposits in the injectors?  Oh well, as long as my problem stays away, I'll be happy.  Thanks to everyone for their advice, opinions, and suggestions!!!
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

TFI module going on a permanent lunch break?-SOLVED

Reply #16
You gutted the smog system but you're only getting a 44, and not a 44/94? That is very odd.

TFI module going on a permanent lunch break?-SOLVED

Reply #17
Yeah, I just recently started getting the 94 also...like I said, about 8 codes stored in there total right now...gotta check my TPS too.  Little bit at a time.
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

TFI module going on a permanent lunch break?-SOLVED

Reply #18
i've got a question,

did you happen to do a throttle body cleaning on your rig some time ?!

if you did..and didn't use the right stuff, i may have taken out your
O2, or, it could have been bad from the begining,

i know at my shop, we've got a computer that will read the values of the O2 sensor while the motor is running, try that...most the time they want a diagnostics fee, 

if you haden't done a TB cleaning, maybe try that,

it might help if i read the rest of the post where you fixed it ..and didn't need any advice,

5.0's aren't all that hard to pull the injectors off of are they ?! take them to an ultrasonic cleaning place, and have them flowed an all.

maybe check the fuel pressure, make sure your FP is keeping up

(am i still talking ? )

TFI module going on a permanent lunch break?-SOLVED

Reply #19
Quote
5.0's aren't all that hard to pull the injectors off of are they ?!


No, but pulling all the other  out of the way is a pain in the ass!
-- 05 Mustang GT-Whipplecharged !!
--87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's!

TFI module going on a permanent lunch break?-SOLVED

Reply #20
Yeah, I did do a throttle body service to it...used STP Throttle Body and Air Intake Cleaner...I used some carb cleaner before that.  That actually took the high rpm miss away for about 2hrs then it would come back....The injectors came off of my buddy's 12.70 'Stang before he upgraded to 24's.  The only thing I can think is that maybe some of the pintle caps broke off of the injectors and either the spray pattern sucks or there is  building up on the injectors from it not running right.  It's running pretty good now, we'll see how it goes from there.  Maybe a couple more bottles of Lucas fuel injector cleaner will do the trick...lol.  Once I save up a little money, I'll get a new EGR and EVP sensor...I don't think they are the root of the problem but they need to be replaced.

Thanks again,
Don
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