#1996 MAZDA PROTEGE THROTTLE CODE#

I also wish it had cruise control and whomever came up with the cup holder design at Mazda probably doesn't have a job there anymore. Someone changed the stock 13' rims to nice aluminum 14' and the ride is nice compared to others with stock wheels that I have driven. All that is available is padding and rolls of carpeting that I would have to cut to fit and doesn't have the driver's side floor pad. I do wish I could find an actual replacement molded carpet though. The engine could use a few more horses with the automatic but I'm used to it after all this time and it doesn't really bother me too much. I just replaced the stock Mazda battery two years ago! The gas mileage is about 32-34 highway and it's roomy inside. I just turned 112,000 miles on it and have only replaced the waterpump and timing belt and have had regular fluid changes. This is one of the harder codes to track down so I wouldn’t be too hard on the dealer.I got my 1996 Protege DX with an automatic transmission in 2006 and it's been a great car. Pull your plugs to see if one of them indicates a lean or rich condition, that might help point to the right cylinder. Look for leaks in the exhaust system too, they can cause this code. If it affects the idle, replace the gasket. Spray carb cleaner all around the intake manifold gasket. Make sure the hose isn’t ruptured or kinked. Thats the hose that goes to the valve cover from the air cleaner box that does not have the PCV valve. The PVC was a good guess, check the supply air tube for the PVC system. Thats usually because one cylinder is running rich or lean so the system can’t “lock on” or stablize.Ī whole lot of things can cause this, one of them is not the O2 sensor, which is often the first things replaced that doesn’t fix the problem.

#1996 MAZDA PROTEGE THROTTLE CODE#

My understanding of the P0170 code is that the fuel mix is neither too rich or too lean, its just that the system can’t seem to get it right. Other than that, I don’t seem much choice other than to work your way through the engine checking components that might cause a bad fuel-air mixture. If your OBD scanner allows you to examine the output from individual sensors, you might be able to get some ideas what is going on by examining the outputs from the forward O2 sensor. And you also know that P0170 on a Mazda Protege may not mean the same thing as P0170 on some other car. I’d say probably the forward O2 sensor, but that is a guess. Unfortunately, you are getting P0170 and all you really know is that it is something different than P0171 or P0172, it is probably related to the Oxygen levels measured at the O2 sensor. And if it does, the DTC code system is ready for it. I don’t think any such design currently exists. My guess is that the guy at EPA who drew up the list intended for P0170 to cover emission control systems that could detect a bad mixture, but didn’t really know if it was too lean or too rich. The EPA defining voltage levels, failure counts, etc would cause no end of grief. Different engines and emissions control systems run a bit differently. At some level, exactly what a code means on a given vehicle is up to the manufacturer – which is more reasonable than it sounds. They apparently presented the car manufacturers with a list of codes and a dictate that if the car-mongers expected to sell 1996 model cars, they would check for whatever codes applied to their engine design and report them.

Which, of course, you can’t do.īackground: These OBD codes were dictated by the EPA back in the early 1990s. Why not P0171 – fuel mixture too lean? Or P0172 – fuel mixture too rich? Probably, you’d have to ask whoever wrote the code. Regretably, P0170 seems to be a kind of nebulous code that seems to mean that the fuel mixture is too lean, or too rich, or whatever else the programmer wants it to mean. *** What are the most common causes of a po170 fuel trim fault? Obviously, the dealer does not want to–or cannot–say what the leading caused of this fault are.

1996 mazda protege throttle