I need serious advice. I got this vehicle from a buy here pay here, they said they didn’t have a chance to inspect AFTER I already started the paperwork. I’m already having major problems, I am trying to find out what I need to do step by step to fix this vehicle myself without having to replace the Cvt transmission, unless that would be the best option.

I am experiencing loss of power, shuddering, jerking, and not going into gear. Rpms are also jumping up and down.

As of now my husband has done a full drain and change of transmission fluid because the dealership overfilled it and the fluid was burnt with shaving or something in it.

These are the codes my vehicle is throwing :

P0171
Power Train
System

Fuel System Lean - B1
Code P0171 indicates that the Bank 1 System is too lean for a predetermined period of time.

P0171

P0174

P0300

P0841

Fuel System Lean - B1
Fuel System Lean - B2

Multiple Misfires Failure

Transmission Fluid Pressure Sensor/Switch Circuit

Secondary DTCS

P0171
P0174
P0171
P0174
Fuel System Lean - B1
Fuel System Lean - B2
Fuel System Lean - B1
Fuel System Lean - B2

ABS
C1199
Brake Booster

On cold start ,the lower air flap opens/closes 3 times then beeps and settles closed .

When I turn the engine off it reopens on its own and stay in open position.

Please advise if this is normally working or a sign of a fault ..no symbols on dashboard..thanks for your time

2025 Kia Niro EX

Hello all, I'm looking for advice on my 2012 prius. I'll try to give as much info as I can. Recently I was driving and I noticed the temperature icon was on the dash. Not long after that the vehicle lost power, and the dashboard lit up and showed check the hybrid system, stop vehicle in a safe place. I drove until I got to a place that was out of the way. I put it in park, and shut it off. I turned it on, and when I tried to shift into drive it would only go onto neutral.

I opened the hood and the overflow was completely dry. The inverter coolant tank was still full of fluid. I did some googling and turned the car to the in position to watch for swirling in the inverter tank and saw none. Google said it's most likely the electric water pump has gone out. I had it towed to my dad's house since it was close.

I came back the next day and tried to start it again (thought maybe it was just too hot the day before) and the same thing. I have one of the Bluetooth obdII scanners and scanned the system. I'll attach screen shots of the trouble codes.

Is this even worth trying to fix? Is the hybrid code related to the overheating? Everything I've read seems to point that it probably is, but I'm not sure. Is there anything else I need to check, or something perhaps I'm missing?

I've found a few YouTube videos on replacing the electric water pump, and while it doesn't seem that hard, I'm not sure if will solve the not starting issue afterwards. Should I clear the codes after replacing the pump? Sorry for all the questions, just trying to give as much info as possible.

I have been having this knock sensor issue with my 2020 Kia optima for months now.. Check engine light constantly blinking, car will not exceed past 2000 RPM but drives perfectly normal when under 2000rpm. I was told there was a class action or warranty? For this kia fault but my car vin doesn’t list under the recall.. anybody deal with any similar situation or any advice?? I was told I needed to pay $500 btc test to determine if anything is wrong with engine for replacement??

Please provide any feedback if possible, I just need to know the best move to make.

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2009 CRV 250,000 KM. Was getting about 8.5L / 100km on highway. Now about 10.5L/ 100km

Then check engine

Was getting P133 code and 141. Replaced o2 sensors and cat ( as it was too rusted to fix)

Used cheapest cat and o2 sensors. Fuel mileage was great again for a few days. Then P420 code - poor cat efficiency. Poor fuel.mileage. auto shop says its cheap cat

Replaced with a high-end walker cat. Fuel mileage a little better 10L / 100km on highway

I kept cheap o2 sensors and at some point in journey, I Replaced plugs with cheap Amazon plugs

mechanic watched live data. Doenstream o2 sensor heater current issue at 0.68 - acceptable range is 0.8 to 1.20

BUT NO CODES.

Can cheap o2 sendors AND /OR cheap plugs affect my fuel mileage without throwing up codes?

Could the cheap cat have damaged my cheap sensors?

Thanks alot

Left sliding door stuck closed . Tried the fuel cap safety button thing , tried battery disconnect checked child lock , pried open the panel everything moved

That’s my new hobby and now 2 weeks later I’m running out of space😅😂 I might start a ball

I almost jumped all over this deal on 30lb cans of R134A but it seems too good to be true. These are selling at +/-$300 from major retailers. Anybody bought from Perinhub.shop before?