Question about Mazda B-Series Truck

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P0302 error code on a 1999 Mazda B2500 Truck. It was starting to idle roughly at start up so I changed the plugs (8) and 8 wires. No real help. Engine also idles very rough if while in park I rev up to 2-3,000 rpm and let off gas pedal. It recovers in 10-20 seconds. Both coil packs dealer replaced 3 years ago.. Eng. has throttle body fuel injection. What next?

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6ya6ya
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Posted on Jan 02, 2017

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  • 62 Answers

SOURCE: 1999 mitsubushi eclipse shows p1390 engine code

have you had a recent timming belt if so get it re timmed

Posted on Jul 29, 2009

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emissionwiz
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SOURCE: Need fuse diagram for mazda b2500

go to the link below and choose the 1998 ford ranger as the truck, they are the same, then follow the link to ford site and download the 1998 ranger owners manual, the fuse diagrams are in there
http://www.edmunds.com/ownership/howto/articles/120189/article.html

Posted on Sep 16, 2009

SOURCE: 2001 Mazda B2500 Rough Idle

Check for Vacuum hose(s) off at the black intake tube and at the vacuum tee on the left side rear on the upper intake manifold.

Posted on Oct 07, 2009

outdoorsman5
  • 631 Answers

SOURCE: p0302 cylinder 2 misfire detected enginge revs

The P0302 could be several things including but not limited to the following. Engine mechanical fault, a wiring problem, Could be an Ignition or fuel system problem, Could be a bad injector or bad ECT (Engine Coolant Sensor) or MAF (Mass Air Flow Sensor) or a problem with the ECM (Engine Control module)

Posted on Dec 11, 2009

ftw1952
  • 10319 Answers

SOURCE: need to know if 1999 mazda b2500 has a transponder

if the head of the key is made of black plastic covering it is

Posted on Feb 06, 2010

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Keeps throwing up trouble codes p1506,p1151,p0302,p0171


Definition of Diagnostic Trouble Code P1506 Audi: Closed Throttle Position Switch Does Not Open/Short to Ground BMW: Idle-Speed Control Valve Opening Solenoid Control Circuit Signal High Ford: Idle Air Control Overspeed Error (see P0507) Jaguar: Idle Air Control System RPM Lower Than Expected - B Bank Kia: IAC Valve Opening Coil Voltage High Lincoln: Idle Air Control Overspeed Error (see P0507) Mazda: Idle Air Control Overspeed Error Mercury: Idle Air Control Overspeed Error (see P0507) Porsche: Throttle Jacking Unit Lower Mechanical Stop, Signal Implausible Volkswagen: Closed Throttle Position Switch Does Not Open/Short to Ground Volvo: IAC Valve Opening Signal
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Definition of Diagnostic Trouble Code P1151 Audi: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded BMW: Oxygen Sensor Heater Circuit Signal Intermittent (Bank 2 Sensor 1) Ford: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Jaguar: Lack of H02S-21 switch, sensor indicates lean Land Rover: Lambda control limit bank 2.Implausible signal/condition Lincoln: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mazda: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mercury: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Subaru: HO2S-12 Heater Circuit High Input Toyota: Coolant Path Clog Up for Coolant Heat Storage System Volkswagen: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded
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Definition of Diagnostic Trouble Code P0302 Category: Powertrain Definition: Cylinder 2 Misfire DetectedNote: This definition of P0302 is applied to all manufacturers
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Definition of Diagnostic Trouble Code P0171 Category: Powertrain Definition: System Too Lean Bank 1Note: This definition of P0171 is applied to all manufacturers

Jun 17, 2015 | Cars & Trucks

1 Answer

Why does my check engine light keep coming on for the same codes?


Cylinder #2 is misfiring (P0302) and the Trib is Misfiring at startup (P0316). Mazda Tributes and Ford Escapes are notorious for cylinders going bad. You can either change each cylinder as it decreases in performance, or suck it up and do them all at once.

May 24, 2015 | 2004 Mazda Tribute

1 Answer

My 1999 troy lee b2500 will not ital


If it's really rough, check for dirty or stuck EGR. It just slightly rough and also you have to depress gas pedal a bit to start, check IAC (idle air motor). If gas mileage is also bad check coolant temp sensor.

Dec 29, 2014 | 1999 Mazda B-Series

1 Answer

Rough idle


if its petrol, its going to be the idle speed or stepper motor ,just also check the air flow meter ,make sure there is no rubbish in the mesh in there ,,there is also a tiny little skinny wire in there ,make sure its in one piece ,dont touch it with your hands just use lite compressed air to blow it clean

May 19, 2012 | Mazda B2500 Cars & Trucks

1 Answer

My 1999 mazda idles rough when engine is cold


Clearly this car is getting a bad air/fuel mixture. However i would not suggest that you jump to the conclusion of it being the fuel pump. I would suggest that you start by taking a fuel pressure test to find out if the pump is good or bad. The pressure should be around 45psi prior to start up and about 35psi when you start up. You can rent a fuel pressure gauge at autozone or you can have someone do a fuel pressure test at most independent shops.

If the fuel pressure tests fine you need to inspect the mass air flow sensor

Jan 13, 2012 | 1999 Mazda B2500

1 Answer

2001 Mazda B2500 Rough Idle


Check for Vacuum hose(s) off at the black intake tube and at the vacuum tee on the left side rear on the upper intake manifold.

Sep 28, 2009 | 1998 Ford Ranger SuperCab

1 Answer

DTC P0300, P0302, P0171, PO506


hey man i have the same problem... did you fix it.. i need help please email me at carlos_42611@yahoo.com if you have any info!

Mar 15, 2009 | 2004 Mazda RX-8

2 Answers

Starting the engine


spark plugs. wires. or if no petrol pump og filter

Jan 24, 2009 | 1999 Mazda Pickup

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