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I have a 92 Jimmy with the 4.3 CPI and first I can not get the o2 sensor off and I've tried any tricks to get it off? Second because I can not get it off it had to stay and I had to drive it now its leaking what I think is gas and oil mix but mostly gas where the manifold bolts to the exhaust how can I fix this or is it fixable?

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  • Cars & Trucks Master
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To remove oxygen sensor you need to start engine get exhaust system hot.the oxygen sensor has to be hot before you can remove it.spray a little WD-40 it can be some help.

Posted on May 03, 2013

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Posted on Jan 02, 2017

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SOURCE: my camry is leaking gas from exhaust

its the ecu ,my camry had the same problem. one of the injectors is staying open and flooding the cylinder.changerd the injectors same problem,changed the ecu problem solved.

Posted on May 28, 2009

  • 462 Answers

SOURCE: o2 sensor location 1997 pontiac grand am 2.4 4 cyl auto trans

BANK 1 SENSOR 1 IS THE ONE IN THE EXHAUST MANIFOLD. BANK 2 SENSOR 2 IS BELOW THE CATALYTIC CONVERTER.

P0171 SHOULD GO AWAY WITH A GOOD O2 SENSOR BUT DO CHECK FOR VACUUM LEAKS TO BE SURE. 3.1/3.4L ENGINES HAVE A BAD DESIGN INTAKE MANIFOLD GASKET, THE LEAK OIL, COOLANT, AND AIR.

Posted on Jul 13, 2009

  • 225 Answers

SOURCE: Exhaust leak and oil loss

the valve seals leaking oil inside the cylinder will cause an internal oil leak you can't see. exhaust leak is something different. best of luck.

Posted on Aug 06, 2009

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SOURCE: On a 2001 chrysler sebring coupe lxi 3.0 where is

my 2001 chysler sebring lxi 3.0 liter will not start and the starter is brand new

Posted on May 25, 2010

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2003 Pontiac Vibe - 4 Cyl. 150k miles. Ignition coils keep going bad - every 4-6k miles. Coil 1 has been replaced 4 times, Coil 3 once. Coil 4 twice in the past year (20k miles). All spark plugs


Install new spark plugs, 4 new coils & replace the oxygen sensors

O2 Sensors are only good for 100,000 miles, then slow
down or quite

No idea why the coils do not last 5 or 6 years

Cylinder #1 is always at the front on a 4 cyl

Go to Rock Auto --Buy Wells Coils,NGK Double
Platinum Plugs & NTK O2 Sensor

Those parts are expensive because you have a Totota
Motor I guess

Clean MAF Sensor with CRC MAF Sensor Cleaner

Jan 08, 2013 | 2003 Pontiac Vibe

1 Answer

94 jimmy.. have replaced almost everything.. smells like gas inside..all gas lines replaced..was running alot better then couldn't get it started almost like it flooded..starter fine..replacedall fuel...


i have a 1994 gmc jimmy 4.3l cpi. i could not pass the emission test.hard to start, spuddered, and smell of gas was strong. long story short, i replaced my spider injectors, good to go. $278 brand new from auto zone.

Jul 31, 2011 | 1994 GMC Jimmy

2 Answers

Hello I hope you can help. My "service engine soon" light came on.I had trouble codes p0136 and p0304. We cleared the codes and the light has remained off, but the vehicle still runs poorly.My...


What does that mean? Essentially the same as P0137, a P0136 code refers to the second oxygen sensor on Bank 1. The O2 oxygen sensor produces a voltage between .1 mV and .9 mV. The ECM monitors O2 sensor voltage and determines if exhaust is lean or rich. O2 sensor voltage is high when exhaust is rich and low when exhaust is lean. The ECM monitors this voltage and increases or decreases fuel injector pulsewidth according to engine fuel/air ratio. If the ECM detects low HO2Sensor voltage for an extended period, it will set P0136 Conditions required to set: HO2 sensor voltage is low for longer than 2 minutes (minutes depend on model of vehicle. Could be up to 4 minutes)
Symptoms There may be no visible symptoms to the driver. Poor fuel mileage, possible misfire, depending on O2 sensor position when sticking.
Causes A code P0136 may mean that one or more of the following has happened:
  • Faulty O2 sensor leak in exhaust close to O2 sensor
  • Short to voltage on O2 signal circuit
  • Open in circuit resistance caused by corrosion in connector
Possible Solutions
  • Replace the second oxygen sensor on bank 1
  • Repair open or short in signal circuit
  • Clean corrosion from connector

A P0304 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #4.
Symptoms Symptoms may include:
  • the engine may be harder to start
  • the engine may stumble / stumble, and/or hesitate
  • other symptoms may also be present
Causes A code P0304 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer
Possible Solutions If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Replace the O2 sensor first and see if that helps clear the vehicle up some. Some times these codes will trigger other codes and these are the issues that you will get.

Jun 24, 2011 | Ford E-Series Cars & Trucks

1 Answer

Po141 o2 sensor code comes on my 1999 chevy s10 I've replaced the sensor. The check engine light came on again.


You should have 4 O2 sensors and it sounds to me like the wrong one was replaced. Bank 1 Sensor 2.

Jun 24, 2011 | 1998 Chevrolet S-10 Pickup

1 Answer

Install 02 sensor,92 pick up 22re,automatic,4cyc.


you will need an o2 sensor tool you can get one at eney auto part store. first disconect the 3 or 4 prog wire form the o2 sensor place tool and remove some toyota trucks have them on the exost manifolds some of them on the exost pip just be for the catolitek converter.

May 18, 2009 | 1992 Toyota Pickup

1 Answer

Gmc jimmy


replace fuel pump

Mar 10, 2009 | 1992 GMC Jimmy

1 Answer

1997 gmc jimmy


Sounds like the cpi injector assembly. The fuel pressure regulator may be leaking. Or the poppet valves on the injectors may be sticking or shot. I replaced almost every part on my truck and that is what it ended up being the whole time. It's a common problem on these models. Hope this helped

Mar 01, 2009 | 1997 GMC Jimmy

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