Question about 1999 Saturn SL

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P0137 I recently took my car to Auto Zone to be scanned and received this: - Fuel System running veryrich or lean - Fuel Pressure - Engine misfire condition The car also Stalls occasionally when accelerating and when I brake, so what do I have to repair/replace in order to meet inspection standards?

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I had similar results my valve cover gaskets leaked oil on the o2 sensors so I degreased everything and replaced caskets and O2 sensors

Posted on May 09, 2014

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There are several things that could be wrong. The problem with an Auto Zone scanner is that it's just a code reader. You'll need to troubleshoot the engine. Start by looking for a vacuum leak. Are the fuel and air filters clean? How about plugs and wires?

Posted on May 07, 2014

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Posted on Jan 02, 2017

Mike258
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SOURCE: car wont start

At first, I thought 'coil pack'. But you said it tried to start. So that's out. You might check that you're getting spark just to be thorough.

Did it ever start again after the stall on the interstate?

If not, I'm leaning towards the timing chain.

What happens if your timing chain broke:

  • The timing chain no longer turns the cam(s)
  • The cam(s) no longer open/close the valves
  • The valves become stationary, remaining open or closed depending on the position of the cam(s)
  • If even one valve is open in a cylinder, no compression.
  • No compression, no start.
How do you confirm this without tearing apart your engine?

Do a compression test on all cylinders. If only one or two have compression (or one or more have zero compression), I'm tipping over towards the timing chain.

Have a compression test done.

Hope this helps

Mike

Posted on Jul 17, 2008

  • 3 Answers

SOURCE: fuel system

Have a mechanic do a fuel system pressure check. You are probably having a problem with your primary and secondary fuel pumps. This should show up as a problem with a code scan, but sometimes it doesn't show at all.

Posted on Aug 19, 2008

sparxxinct
  • 73 Answers

SOURCE: saturn vue 2002 aed v6 not passing inspection test

sounds like a dirty mass air flow sensor.if you have in deed replaced it i would check the voltage going to the sensor.perhaps its a faulty connection between the power controle module and the sensor socket.if that dosent work i have a few more tricks to try get back to me and i will help further. poppinwheelies@sbcglobal.net

Posted on Feb 26, 2009

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SOURCE: Car stalls when you let off the gas when warm or idling

Don't let off the gas!

Posted on May 02, 2009

SOURCE: 2005 saturn ion2 missfire problems

Stop wasting time at auto zone and throwing parts at it. Find a good repair shop and have it properly diagnosed and repaired.
Have you ever had a spark plug fail in your lifetime?Probablely never will.
Do you know how to test a coil pack? Did you test it?

A simple check of vacuum hoses or a loose air filter cover,loose gas cap an so on ,could be your part of your problems. e.g. something simple.

I would recommend spending the big bucks and getting the shop manuals,for all your vehicles,something no one wants to do. Then study your vehicles systems and eventually ,you may be doing your own repairs.

Posted on May 25, 2010

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1 Answer

I have a 1999 chevy malibu - 45000 mi. Took to auto zone for computer reading and replaced O2 sensor that the dealer replaced with the fuel filter. about 145 miles while accelerating up a moderate hill...


The 02 sensor is detecting a malfunction in the emissions. That would be from a bad fuel mixture, too rich or too lean caused by dirty or faulty injectors or MAF sensor. A clogged catalytic converter will also cause it. Connect a manual fuel gauge to the fuel rail and test your fuel presuure. Test your fuel pressure regulator, the fuel pressure should increase 5-10 pounds when you disconnect the regulator...if it don't, the regulator is bad...Check for vacuum leaks and stuck or dirty egr valve. This would cause a lean condition. Check your air filter. Good luck, i hope this helps.

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I have a 97 k1500 that is burning fuel like crazy, it is running very lean, and seem to be misfiring often. I've change the spark pulgs and found that the entire left side 4plugs was black with suit. The...


If its burning fuel and the plugs are black with soot, then its burning rich. the codes you said are P0300 generic misfire and P1153 heated O2 sensor B2 S1, I would first suspect that O2 sensor. Bank 2 is the passenger side (right side) of the engine and doesn`t explain why the left side plugs are black with soot, unless you say the left side by looking at the front of the engine. If this is the case then definitely replace the forward O2 sensor in front of the catalytic converter on the passenger side of the engine.

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It took 9 tries to start my 1999 Lexus RX 300, this is a intermittent problem.


sounds like low fuel pressure could be an array of things no engine light? even if no check engine light have it scanned for trouble codes its free at auto zone

Jan 06, 2011 | 1999 Lexus RX 300

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What does it mean when your bank 1 n bank 2 are running lean


A lean bank 1 and 2 is indicating there is not enough fuel being injected to support proper combustion.
Leading causes can include but are not limited to......
1) low fuel pressure or plugged fuel filter.
2) vacuum leak causing lean condition.
3) air intake hose or crank case not sealed properly and bypassing the MAF sensor or the MAF sensor element is dirty.
4) wrong fuel or poor quality fuel used.
Hope this helps. If the Service Engine Soon light is illuminated, there will be fault codes associated the light. Get the vehicle scanned for free at your local Auto Zone or Advanced Auto and report back.

Nov 25, 2010 | 2003 GMC Yukon XL

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The engine lite go on, we replace the oxygen senser when you go at a speed of 60to 70miles it comes on when the truck is cold no light, we did replace other things but the lite will come at a high speed


If there is an AUTO ZONE around your area, have them scan the truck for any DTC codes which would help us understand why there is a check engine light at high way speed. It could be a misfire to transmission problem, to having the engine run lean or rich to a faulty fuel pressure regulator. Good luck and keep me posted, be glad to help get your truck running 100% again soon. 

Oct 05, 2009 | Chevrolet 1500 Cars & Trucks

1 Answer

Check Engine Light


Your diagnostic about this CODE is:

Generic P-Code DRB Scan Tool Display Brief Description of DTC
P0171 (M) 1/1 Fuel System Lean A lean air/fuel mixture has been indicated by an abnormally rich correction factor.
P0320 (M) No Crank Reference Signal at PCM No reference signal (crankshaft position sensor) detected during engine cranking. P0320 (M) No RPM Signal to PCM (Crankshaft Position Sensor Signal to JTEC) A CKP signal has not been detected at th
For more details, you can visit the obd_dtc_jeep

Good luck, and rated this help.

Aug 11, 2009 | 1997 Jeep Grand Cherokee

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Codes 1128 300 301 302 303 304 on 2000 accent'' i took my car to auto zone those are the codes. i have replaced plugs, wires, coil and mass air flow sencer and fuel filter could it be the O2 sencer? when i...


Concentrate on code 1128, which is basically telling you the engine has been running too lean for a while now, so that explains the misfire codes, which is the rest of them. The main causes of those symptoms is usually a vacuum leak, plugged fuel filter (which you've already changed) exhaust leak, Canister purge system malfunction, or a weak fuel pump. By sounds of yours I'd concentrate on vacuum leak & canister purge system. If you have access to a fuel pressure gauge, check fuel pressure just to be sure, but I'm thinking canister purge circuit.

Jul 05, 2009 | 2000 Hyundai Accent

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My 1999 chevy silverado started lagging down then backfiring


There are to many things to look for that cause the symptoms you described. Best thing to do is get it scanned for a DTC code, that's why your check engine light is on. Auto Zone scan's for free and most auto shop's now scan for around $10.00 to $15.00 since almost every shop has a scanner and want the business.
The scan is going to give you a miss fire code with other codes to why such as to the left or right side banks running lean or both running lean and may be a transmission code to why it shifted hard.
Good luck and keep me posted, as long as there is a engine management problem the transmission may not shift in to it's 4th gear and OD may not activate so take care not to burn out the transmission.

May 26, 2009 | 1999 Chevrolet C1500

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Hi my nissan maxima has problem


The oxygen sensors in the exhaust pipe are saying the fuel/air ratio is too lean. This commonly happens when the computer in the car reached it's limit putting out the most fuel. Therefore, the mix ratio is still lean.
The possible problem maybe:
The fuel pump not puting out enough pressure.
The fuel filter maybe clogged
The fuel injector maybe clogged or needs to be cleaned.

Were there anymore trouble codes besides the two from Autozone?

Apr 15, 2009 | 2000 Nissan Maxima

1 Answer

Code po171 car running too lean...


DTC P0171: Fuel System Too Lean

NOTE: If some of the DTCs listed below are stored at the sametime as DTC P0171 and/or P0172, troubleshoot those DTCs first, thenrecheck for P0171 and/or P0172.

P0107, P0108, P1128, P1129: Manifold Absolute Pressure (MAP) Sensor
P0135: Primary Heated Oxygen Sensor (primary HO2S) (Sensor 1) Heater
P0137, P0138: Secondary HO2S (Sensor 2)
P0141: Secondary HO2S (Sensor 2) Heater
P1259: VTEC System

  1. Check the fuel pressure. Is fuel pressure OK? YES - Go to step 2. NO - Check these items:
    • If the pressure is too high. Check the fuel pressure regulator, and the fuel return pipe.
    • If the pressure is too low. Check the fuel pump, the fuel feed pipe, the fuel filter, and the fuel pressure regulator.
  1. Start the engine. Hold the engine at 3,000 rpm with no load (in neutral) until the radiator fan comes on.
  2. Check the primary HO2S (Sensor 1) output with the scan tool. Does it stay less than 0.3 V or more than 0.6 V ? YES - Replace the primary HO2S (Sensor 1). NO - Go to step 4.
  3. Turn the ignition switch OFF.
  4. With a vacuum pump, apply vacuum to the EVAP canister purge valve from the intake manifold side. Does it hold vacuum? YES - Check the valve clearances and adjust if necessary. If the valve clearances are OK, replace the fuel injectors. NO - Replace the EVAP canister purge valve.

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