recommend engine oil for 1994 nissan sentra

We bought this car two days ago off of craigslist. We went to get it smogged that same day and it turns out the guy we bought it from had disconnected the battery (probably to make the "check engine" light turn off). When we got the monitor to activate the day after, we got code PO172. I think there was another code but I don't remember the number. I think it said "catalyst" somewhere but I'm not completely sure about that.

My husband took the car to a mechanic today and was charged $65 for them just to find th problem in the first place. They called us back and said that one catalytic converter was missing (the back one) and that another one was messed up and had to be replaced (the front one). I know nothing about cars as you can tell. Mechanic said it was going to cost us $1700 because we can only get them from nissan directly.

Is this too much money to pay? I have a feeling it is.

I was wondering if I could just go to a muffler shop and get them welded on...?

Or can i just get the parts online?

I have no clue any and all advice is appreciated.

p.s. the car doesn't make any weird noises and runs well.

...I just found out I can't buy catalytic converters online because I live in California... GREAT!!!!

i need help to locate the senor so i can replace the part if needed.

We have changed the Throttle Position Sensor and the Idle Air Control Valve, and the car still goes dead when you put it in drive. There is no diagnostic code. What could it be?

i am having problems with my check engine light coming on i replaced the air filter reset the light and it just came back on i need help to locate the sensor i took it a buddy to check the code for the problem it was P0110 can anybody help thank you

My brake lights will not go out even when the car is turned off


how do i change the harmonic balancer

I have no heat in the car until I drive at hyw speed then there is lots. Car does not overheat and I flushed the heater core out with a garden hose and it was clean. Thermostat is new and the rad has also been flushed. If the pump fails, would it not overheat the engine? Thank you

gas will not pump in to tank gas attendent told me that the vent in the gas tank is cloged how do i get this fixed and how much will it cost thank you eliazbethrnk@aol.com

I heard noise in my car

Recently the steering wheel started shaking at low speed. What could be causing this?
Also, the "check engine" light is staying on, why?

Sometimes while i'm driving the car will give a little tug (like an acceleration) and the rpm needle starts to jump up and down and then it will stay at zero. My engine light will also turn on and go off a few days later. What could cause this?

My Sentra has 90,000 miles on it. Today I noticed it was making a whirring noise that mainly happened when I was accelerating. Any ideas what this could be?

3 weeks ago i was coming home from school and downshifted to second gear to accelerate up my hill in my neighborhood and pushed the accelerator and there was nothing the car just shut off silently but the power was still on, and would not crank back up. the engine was turning over but wouldn't start. like it was out of gas. but i had 3/4 of a tank. My mechanic and the dealership both told me that there diagnostics said that it was was the ecm. Had the ECM re-built but the mechanic put it back in and said it still wasn't starting, so i sent it back to the place that re-built it and they are currently looking at it to see if they missed something. if the ecm turns out being ok, what could be the problem?

How much does it cost for me to have the water pump and alernator changed? Is it worth to spend more money on this car when I already have over 200,000 miles on it. I have been cheated a lot in the car shop, due to my ignorance. Please advise.

I also have a Honda Accord 02, I was told to have it tune up. I am not sure if i should do that, I have about 96,000 miles on it. I did have the belt changed last June and the mechanic did not do good because when i picked it up, it did make a terrible sound specially when I am turning. When I brought it back, i was told that there was no problem. When I drove out of the driveway and making a wide turn, that is the time that they heard the sound and decided to fix it. Where in the world, could I find somebody that I could trust and not overcharged me. Please advise. Thank you very much. Hope to hear from you soon.


Where is the catalytic converter located on a 2011 Sentra SE-R Spec V?

Automatic Transmission won't shift out of low. The car has reverese but went put into drive it stays in low gear and won't upshift.

heater only works when it's set to the highest level which is 4.....1-3 doesnt work?

rear wheels locked up, told need calipers, rotors and disc for rear breaks for over $1000 i have a 2001 nissan sentra

I have an oil leak, as well as for the last 3 weeks I have been having to put power steering fluid in every week. I wonder if I have a plug loose with my steering fluid? Were do I look for the plug to check it? As for the oil leak I wonder if I need a new oil pan?

SES light on, code P1446, how much would it cost to replace vent valve hose and evap cannister. The dealship wont over under warrenty - said I was driving offroad conditions. Can you recommend honest repair shop.

My car was damaged... I had a front oil leak and took it to get it fix by someone who does work on the side... ( bad move)but little $ so... anyway he destroyed my car took my money and sold the part I purchased and seal the leaks with the (car = to glue) he also jammed my keys into the ignition and it will not come out and damaged the automatic gear shifter(not the transmission the stick itself)where it is now sliding from gear to gear... I took it to meineke and was give a price of $2067.60 to repair everything. My insurance will not cover it because I don't have that coverage. What should I do... this is my only car and I live miles from everything...please help. Thank you in advance.

install remote starter

Although there is no abnormal sounds, the brake pedal seems softer then normal and goes almost to the floor in order to stop the car. Brake fluid was added but still seems too soft. I was told recently when the tires were replaced that the brake pads were good so is it time for a brake job?

when my heater comes on it starts smelling like rubber burning, then the smell stops, then it will start up again after awhile. What is causing that?

Power window (driver's side) not functioning. Need to install replacement switch. Is this a DIY job or should I leave it to the pros.

It squeals usually every time I turn the wheel all the way in either direction (left and right). Seems to be getting worse as time goes by. Power steering fluid level was actually a little too high. Could too much fluid cause noise? What else could it be?

could someone please tell me where the crankshaft position sensor is on my 2004 nissan sentra, or where i can get a diagram showing where it is thank you so mu8ch

what special steps are needed to set timing correct?