Engine smoke on startup
Why does my 91 protege smoke on startup and sound like it is running on 3 cylinders?

Other than a minor change in nomenclature, the Mazda Protege received no upgrades for 1991. The four-door compact sedan was available in three versions. The entry-level Protege DX, which has been identified as the SE the previous year, was powered by a 1.8-liter, four-cylinder engine that generated 103 horsepower, while a higher-end LX trim package, as well as a base model equipped with four-wheel-drive, received the same 1.8-liter four-cylinder engine, but twin cams boosted its horsepower to 125. A five-speed automatic was standard for all three models, while a four-speed automatic was optional. Standard features for the Protege DX included power brakes, a rear window defroster, and 13-inch wheels. The 4WD package added power steering and 14-inch wheels, while the LX version added power windows, power door locks, power exterior mirrors, cruise control, a tilt steering wheel, and an AM/FM/cassette stereo system. Drivers noted that, for the most part, they had good luck with the Protege, since it ran well and usually required only routine maintanance. They also noted that the car was reliable, comfortable, and was easy and relatively inexpensive to repair. Performance, acceleration, and handling were also cited as positive points. On the downside, drivers noted that the interior could feel cramped at times, but that was in keeping with the car's subcompact nature.
Why does my 91 protege smoke on startup and sound like it is running on 3 cylinders?
I have a Mazda protege 1991 and a few weeks ago I filled the tank and the car stalled on me about 2 minutes later. I can restart after a few seconds but it won't last long before it stalls again. I got the battery replaced (needed to anyway) and no luck. I don't lose power as when it stalls my lights and radio and ac stay on fine. I figured it was an issue with the fuel system and used some fuel injection liquid as a quick fix. As you can probably tell by now I don't know much. I don't have time to take it in to a shop as I work all week and just started this job and therefore can't take any days off to go get it looked at right now. Today I was looking at it and I noticed that the hose coming off my engine and into the large plastic elbow hose thing was cracked. I think it's the Pcv hose. Would this be the culprit? I really don't want to waste any money on something I don't need.
i am trying t findout if my 1991 mazda protege has a non interference type engin or an interference type
Find where water pump is?
91 mazda auto. stalls on it's own. not sure when it will do it, canadian tire said it was some grim on back of throttle body????????? any thoughts car has only 150k.
Audio System
AM/FM radio
Convenience Features
Steering wheel: tilt-only
Seats
Front seat type: bucket · Upholstery: cloth
Windows
Front wipers: intermittent
Audio System
AM/FM radio
Convenience Features
Steering wheel: tilt-adjustable
Mirrors
Exterior mirrors: power
Roof
Sunroof: power glass
Seats
Front seat type: bucket · Upholstery: cloth
Tires and Rims
Wheels: alloy
Audio System
AM/FM radio
Drivetrain
4WD Type: part time
Seats
Front seat type: bucket · Upholstery: cloth