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My car engine service soon light came on ,i tuke the car to auto zone for diagnostic day said its was misfire , the light was flashinf at the time ,so i dit wat they told me an change a lot of the things and the service engine soon got fix but now its stalling and loss of power when asseleration like the gas its choking i try to fix more things but no luck i have change from pcv ,fuel pump , oxygen sensor , throtle position sensor, air cleaner sensor , mas flow sensor, fuel sending sensor , coil pack , coil madule, sparkplugs, wire set, clean fuel injectors, wat i need to finish its the catalic converter, knock sensor , and speed sensor , plz help me to get this fix , my car its still stalling or loss power when asselerate or giving it gas in drive,,,,,,,

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  • Cars & Trucks Master
  • 5,618 Answers

Problem is did they tell you what # 301,303 or 305.this mean you have bad ;coil,wire,plug.

Posted on May 09, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 328 Answers

SOURCE: 98 olds aurora, changed fuel pump and gas tank, shortly after problem began again, car jumps when driving and while at red lights. Do I need to check my fuel lines and fuel filter. also my engine serv

yeah ur rpms will be all over place when cat goes bad

Posted on Apr 14, 2009

  • 151 Answers

SOURCE: car runs rough at idle

clean out ur throttle body, just follow the hose from the air filter to the throttle body. Need 2 people to do this. Don't remove the hose completely from the throttle body. Just enuff to be able to spray ur intake cleaner into the throttle body. Do this especially if its worse when the motor is hot, as this would confirm the problem.

Posted on Sep 04, 2008

SOURCE: 1999 pontiac grand prix . will not run

If wiggling the wires cured the code, then one of the wires is broken inside the insulation. Pull on each wire one at a time. look for the colored insulation to stretch, this will be the broken wire. For the other car that wont rev up, this is a common when the catalytic concverter is plugged up. This will also cause MAF codes, and in turn, TRAC OFF light.
See http://www.greatautohelp.com

Posted on Oct 17, 2008

dturnlund
  • 45 Answers

SOURCE: engine runs rough at idle and bucks at highway

I had a similar problem in a 1994 Taurus, and after spending nearly 300$ on ignition parts, it turns out the problem was a bad spark plug wire that cost me 8.88$ to replace.

Posted on Mar 01, 2010

Testimonial: "n.o. 1 spark plug wire it is. thank you"

ZJLimited
  • 17970 Answers

SOURCE: FORD F150 4.6 L Engine

Several thnigs to check there; review all informastion disponible to do it and solve this...

P0356
- Ignition Coil F Primary/Secondary Circuit Malfunction
The ignition signal from the Powertrain Control Module (PCM) or Electronic Control Module(ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation

Possible Causes:
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM or ECM

Possible Solution:
- If damage, repair ignition coil circuit
- Replaced ignition coil
- Replaced PCM or ECM
------------------------------------------------------------------------------------------------------------------------------------------------

P0152 - O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)
The heated oxygen sensor 1 is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the ECM. The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust

Possible Causes:
- Harness or connectors (The heated oxygen sensor 1 heater circuit is open or shorted.)
- Front Heater oxygen sensor heater (Bank 2) may be faulty

Possible Solution:
Replacing the O2 Sensor 1 usually takes care of the problem
------------------------------------------------------------------------------------------------------------------------------------------------

P0174 - Fuel Injection System Too Lean Bank 2
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. The ECM calculates the necessary compensation to correct the offset between the actual and the theoretical ratios.

In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the ECM judges the condition as the fuel injection system malfunction and light up the MIL (2 trip detection logic).

Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption

Possible Causes:
- Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection

Possible Solution:
Dirty air filter of faulty air flow sensor are common causes of the problem.
------------------------------------------------------------------------------------------------------------------------------------------------

P2197 - DODGE - Sys Too Rich at Hier Load Bank1
Means that the O2 sensors on each bank are seeing WAY too much oxygen in the exhaust gas. In normal operation the signal from the O2 sensors should swing back and forth between rich and lean. Your sensors are locked on lean.

Those codes are the same as P0174 (and P0171). Sounds like you have a vacuum leak somewhere. Most common place is the PCV elbow where it connects to the throttle body adapter.
------------------------------------------------------------------------------------------------------------------------------------------------


Hope this helps; keep in touch.

Posted on Dec 30, 2010

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