Question about 1999 Suzuki Vitara

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Check engine Went and had a diagnostic, was told No. 1 plug or wire. Which is #1?

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  • Anonymous Jan 06, 2009

    check engine light came out and engine is kind of shaking with rpm down a little



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Hi zasty2008, I assume this is a 4 cyl engine? the #1 plug wire is the first plug wire at the front of the engine good luck

Posted on Nov 11, 2008


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I have a 1996 GMC Jimmy that was iddling very rough and code said cylinder 2 misfire check engine light was on solid. Replaced all plugs, wires, cap and fuel filter 1st of March 2013. It ran better for a...

Lets start at the beginning. Did anyone check fuel pressure before and after replacing the pump ?
Has anyone checked the fuel pressure regulator and the injector spider ? The 4.3w engine uses a spider with one injector that supplies all 6 cylinders. And it runs at 65psi or more.

Aug 05, 2013 | 1996 GMC Jimmy

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Check engine light came on

. code po305 is cylinder 5 misfire that can a bad spark plug or a injector.po153 is a o2 sensor. there is 3 on your engine. which one did they replace. the code po153 is for the front one it is in front of the radiator. code po443 is for the purge solenoid ,but there is many things the can cause the code the garage should have checked things first. wow

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Toyota sienna 2006

Your first mistake is having a "diagnosis" by a parts counter sales person.
I wrote an article about his very subject. You might find it helpful. Click the link below to read the article:

What Else Could Be Wrong?

Then, you did not list the code that you got the first time, so there is no way of knowing if the parts sales person told you correctly on the first time or not.

Diagnostic Test Code (DTC) P0058 is defined by SAE J2012 as "HO2S Heater Control Circuit High Bank 2 Sensor 2" (SAE J2012 is the standard by which all vehicle manufacturers must define the "generic" or "non-vehicle specific" diagnostic test routines necessary to properly diagnose and repair their cars.)

To understand what is going on here, it is very important to understand that this code definition DOES NOT tell you to replace the oxygen sensor. This is an oxygen sensor heater CIRCUIT code. The heater circuit on your vehicle includes the battery voltage (B+) supply circuit and the heater control (HT) circuit to the Powertrain Control Module (PCM). Failure of either of these circuits will cause DTC P0058 to set.

The B+ circuit consists of the BLACK/RED wire at the oxygen sensor connector which gets its power from the EFI 2 fuse (10 Amp) located in the engine room junction block. There are several things powered by this fuse and there are several splices and branches in the wire. Voltage MUST be checked at the O2 sensor connector.

The control circuit for the Bank 2 Sensor 2 heater is the WHITE/BLUE wire that runs only from the O2 sensor connector to connector E7 PIN #33 at the PCM.
BOTH of these circuits must be check to make sure they are not shorted to ground and that they have continuity to their connections at both ends.

Also, after repairs are made, all engine control codes must be PROPERLY cleared using an appropriate scan tool in order to make the check engine light turn off and to prevent additional problems with the engine control system. Many uneducated do-it-yourselfers will tell you to disconnect the battery cables to accomplish this. That is NOT the correct way to do it, and this can cause voltage spikes that can damage sensitive computer equipment in your car and possibly cause fault codes to set in several of the computer modules in your vehicle.

Many do not believe that this is possible. If you want proof, pull the plug on your home PC and plug it back in a few times and see if it doesn't wreck your hard drive....

May 14, 2012 | 2006 Toyota Sienna

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Check engine light is on...have replaced plugs,plug wires,massive airflow sensor,air filter,fuel filter,pulled fuel pump...seems to be ok...can still feel slight hesitation while accelerating thru...

Some check engine lights need to be reset by the OBD-II code reader. It's also possible that you've solved 98% of your problem but there's still 1 problem left (possible clogged fuel injector?) that's pulling a different error code. (possibly P0301-P0312 misfire or P0262-P0295 injector)

Best bet is to go to 1 of the auto parts chain stores that provide free diagnostic tests. If it's just a lingering old error code it will be reset or if it's something new, you'll know exactly what the issue is.

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P0300 indicates random/multiple misfires. Check that the wires were routed correctly. The ticking could be the electrical arc between the wire and the plug if the wire did not "snap" onto the top of the plug.

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Mar 31, 2009 | 1999 Dodge Ram

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Will not stay running

a compression check should be done to make sure that it is not a compression issue, also you can plug in a node light in place of the injector to see if the ECU is firing it off, then check for spark at the plug,

there is very little you can do by pulling out the ECU, most of the diagnostic work on the ECU is done through the OBDII port using a scanner,

hope this helps

Oct 06, 2008 | 1997 Ford Escort

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98 Expedition # 3 Misfire

bad spark plug wire coil pack that the most common thing smell and shacking sure its not running on all cylinder to find out what broken start the engine disconnect at coil pack cylinder number 3 be carefull not to get a shock disconnecting the wire if lots of spark to it back disconnect wire at the plug when removing it should here spark jumping if good change the spark plug it should fix it if not let me no good luck pierre

Sep 17, 2008 | 1998 Ford Expedition

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#1 Cyclinder

check or change spark plug look at the wire check if spark come from the coil check the compression if evething is good injector defectif hope it FIXYA problem pierre

Jul 01, 2008 | 1998 Ford Expedition

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