Or, can the ECM be reprogrammed?
Motor City Patrick
Motor City Patrick
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1988 MGM -
The ECM doesn't know if the converters are there. The sensors are upstream of the cat converters, so the ECM knows nothing about it. No programming is needed to change that configuration around. It won't run rich or lean with the converters missing, it will just smell bad because the converters aren't cleaning up the emissions. Backpressure also has nothing to do with it. Thats something you want as little of as practical. The stock exhaust is overly restrictive anyway, no need to make it even worse.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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So just run with what i have?
Motor City Patrick1988 MGMComment
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Any suggestions?
Motor City Patrick1988 MGMComment
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replace the mufflers if the junk from the cats ended up in them........i think the only choice you are going to have is to replace the cats.....unless you can find an exhaust shop that will bend up new pipe without the cats (this violates federal law) so chances of finding a muffler shop that will eliminate cats is slim to none......i worked at a meineke shop for a few years, we would not do it.
1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
2006 Lincoln Town Car Signature. Stock for now
1989 Ford F-250 4x4 much much more to come, sefi converted so far.
1986 Toyota pickup with LSC wheels and 225/60/16 tires.
2008 Hyundai Elantra future Revcon toad
1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)
please be patient, rebuilding an empire!
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I already replaced the cats with straight pipes
Motor City Patrick1988 MGMComment
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I dont think im getting the same mileage. Thats all i want.
Motor City Patrick1988 MGMComment
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if the mufflers have converter crumbs in them, it won't flow properly. The exhaust needs to flow.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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New pipes and muffler all the way back
Motor City Patrick1988 MGMComment
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