Question about 1996 Chevrolet Camaro

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EGR Location? My 96 camaro had a random misfire caused by the EGR, Where is the EGR located and how long would it take to replace it? What causes the EGR to stop working?

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Behind your throttle body on top of your intake, Takes About A Half Hour To change It, Providing It Removes From The Manifold Without Any Trouble, If Its Hard To Unscrew Try Heating It Up With Oxygen acetlyne, Then Cool It Down, This Should Take Care Of The Problem. Im Not Sure What Causes It To Stop Working Probably Normal Wear, it Is Electrical Soo Probable Just Gives Out Like Some Eletronics Do

Posted on Apr 23, 2009

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Posted on Jan 02, 2017

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I took my 2001 civic to the mechanic to clean my egr ports because of the random misfire when he pulled the intake manifold there was oil in there can is this the problem caused by the rndm misfire


It could cause a random misfire but I can't imagine it's from the random misfire, the only way oil can get into the intake is from the pcv system, most likely the pcv valve. A little oil coating is normal but excessive amounts are usually due to the valve being stuck open

Jan 27, 2016 | Cars & Trucks

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97 Grand am v6 up & down idle. Driving =steady acceleration. I've changed, O2 sensor, throttle positioning sensor. Scan is still saying Random misfires? Get warm won't start.


P0300 Random misfire - lean condition , vacuum leak , low fuel pressure , fuel filter plugged partially , mass air flow sensor .
If the misfire is random, check for the following conditions:
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System Grounds: Ensure all connections are clean and properly tightened.


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MAF: A Mass Air Flow (MAF) sensor output that causes the PCM to sense a lower than normal air flow will cause a lean condition.


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Air Induction System: Air leaks into the induction system which bypass the MAF sensor will cause a lean condition. Check for disconnected or damaged vacuum hoses, incorrectly installed or faulty crankcase ventilation valve, or for vacuum leaks at the throttle body, EGR valve, and intake manifold mounting surfaces.


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Fuel Pressure: Perform a fuel system pressure test. A faulty fuel pump, plugged filter, or faulty fuel system pressure regulator will contribute to a lean condition.


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Injector(s): Perform injector coil/balance test to locate faulty injector(s) contributing to a lean or flooding condition. In addition to the above test, check the condition of the injector O rings.


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EGR: Check for leaking valve, adapter, or feed pipes which will contribute to a lean condition or excessive EGR flow.

Reviewing the Fail Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.

Oct 21, 2015 | Cars & Trucks

1 Answer

2005 chevy equinox what are problem codes po405


405 is EGR sensor circuit a low. 300 is random misfire. An open EGR can cause random misfires.

Aug 31, 2014 | 2005 Chevrolet Equinox

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98 Pontiac GRAND am


The plugs and crank sensor could have done it, but the TPS and idle air control would have nothing to do with a random miss.
A more likely cause is the ignition module or a fuel problem. You may have to wait until the problem is bad enough to kill the engine or you have more codes to check out.

May 20, 2013 | Cars & Trucks

1 Answer

1997 Saturn EGR Check Engine Light


saturn had a lot of problems with the coil posts getting rusty that will cause the misfire on cylinder number 3 and any skip will cause the random misfire see as one coil fire two cylinders the egr sensor is built into the vavle and try stick closed from carbon build up cleaning it will only putoff replacing it if it operates at all

Jun 12, 2012 | Cars & Trucks

1 Answer

I have a 95 camaro with a 3.8l. It had a #1 cylinder missfire code, I found out it had a bad fuel injuector so i replaced it. Now, it's showing a random misfire code. What could cause this change


An intake vacuum leak can cause this as well as other issues, read about it below.
Check Engine Light On, P0300 Random Misfire Code A random misfire means your engine is misfiring, but that the problem is not isolated to one or two cylinders. It is jumping around in a random way from one cylinder to another. A random misfire code usually means the air/fuel mixture is running lean. But the cause might be anything from a hard-to-find vacuum leak to dirty fuel injectors, low fuel pressure, a weak ignition coil, bad plug wires, or compression problems. Even a dirty MAF sensor can cause a lean code and/or misfire to occur. The engine may be stalling because it isn't getting enough throttle opening. The cause is often a problem in the idle air control system. The first thing to check is the intake vacuum with a vacuum gauge. On most vehicles a normal reading is 17 to 21 inches Hg. If the needle is lower, is jumping up and down or steadily dropping, you have a vacuum problem. Look for possible vacuum leaks by checking vacuum hose connections, the throttle body and manifold, and PVC valve and plumbing. An EGR valve that is leaking can also act like a vacuum leak and cause a random misfire. The next thing you should check is the fuel pressure with a gauge. If it is not within specifications (refer to a service manual for specifics because fuel pressure is critical for proper engine performance), the problem may be a weak fuel pump, low voltage to the pump (check the relay and wiring), or obstructions in the fuel line (like a plugged filter). A bad fuel pressure relay can also leak pressure and prevent an otherwise good fuel pump from delivering full pressure to the injectors. Dirty injectors can also restrict fuel delivery and cause a lean fuel condition. Many regular grades of gasoline do not contain adequate levels of detergent to keep the injectors clean. Frequent short trip driving accelerates the buildup of injector deposits. Cleaning the injectors with a good quality fuel tank additive (or having them professionally cleaned) can solve this problem. Look at short term fuel trim (STFT) and long term fuel trim (LTFT) with your AutoTap Express DIY. If the numbers are high, it tells you the engine is running lean

Jul 27, 2017 | 1995 Chevrolet Camaro

1 Answer

Changed all the coils and spark plugs but still getting misfire


That is because spark plugs and coils are not the only things that can cause a misfire. Misfires can be caused by all kinds of things including vacuum leaks, burned valves, bad fuel injectors, blown head gaskets, clogged EGR ports, sticking EGR valves, broken valve springs, broken piston rings, fauly coil or injector wiring, etc. etc...
Trying to diagnose a misfire by randomly replacing parts is the EXPENSIVE way to do it...As I see you are finding out....

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2 Answers

98 silverado random misfire


run a compression test to check for loose valve seat insert . no 1 cylinder
other wise it is a fuel pressure problem and faulty injector/s

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1 Answer

Woul not pass smog


The most likely cause of your problem is the EGR valve. It is likely that the problem you are having is caused by the EGR valve sticking open causing a lean running condition and misfire. There are other things it could be but this is the most likely cause of your problem.

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