Question about Ford Cars & Trucks
Vacuum Leak before converter -causes a lean
condition & O2 Sensor report & PCM adjusts
fuel trim to give you rich -when you don't actually
need it -except to compensate for unmetered air leak
The air leak could be intake ducting,pcv,exhaust system,
lots of places,intake leaks,evap system
You need to look at fuel trim on both banks- as well as O2
data- to figure where to go with the fix
Posted on Jan 23, 2013
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Posted on Jan 02, 2017
sure he has an ecm installed .. its an injection based car.. probably air filter isn't that good .. also check if air intake pass is clear of any wastes
Posted on Jun 27, 2009
dunno about your 95 f150 but mine has now maf sensor it has the speed density set up so you would have to check the air charge sensor and the map (manifold absolute pressure sensor make sure one or both is not bad these to together work like a maf sensor. and of course cause the same symptoms. hope it helps
Posted on Mar 15, 2010
SOURCE: Mazda B2600i
are there any fault codes present? i was looking at the fuel injection diagram on autozone.com and the only thing i can see that controls injector pulse width is the pcm. are all the injectors open for 15ms? you should also check fuel pressure. if you want to look at the diagram, go to autozone.com. register and enter you car. select repair guides, chassis electrical and the wiring diagrams
Posted on Mar 30, 2010
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