Question about 1993 Pontiac Bonneville

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Car nt performing at its best

I have a 1993 pontiac bonneville sse.i have put new air filter,fuel filter,wires,
plugs,battery,altenator,starter,pcv valve,coilpack.i checked all vaccuum line
and they seem to be fine.my check engine soon light comes on.i had the car checked and the only codes come up is poo44.the car rough idles and
looses power cant get much speed out of it can you tell me what codes..
mean

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P0044 - HO2S Heater Control Circuit High. Put a new O2 sensor in it and you should be good.

Posted on Nov 08, 2008

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Try cleaning the mass air flow meter. There;s a spray cleaner you can get at an auto parts store

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Wont start cold turns over 94 bonneville


Sounds like the fuel pump one way valve is bad.
The pump has a valve that is supposed to hold fuel pressure when the engine is off.
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You've already eliminated the spark plug & wireset, distributor cap & rotor.
Sounds like your car needs a tune-up, specifically, the PCV (positive crankcase ventilation) valve, and/of the EGR (Exhaust Gas Recirculation) valve.

Components checked/replaced during a tune-up are:
air filter
motor oil
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Troubleshooting the no-start condition - from the 1990 Mitsu Mighty Max Repair Manual:

Priority Action Part Type -- Cause
1 Inspect Battery -- Battery Discharged or Faulty.
2 Inspect Battery Cable -- Corroded, Broken, Shorted or Poorly Connected Battery Cable.
3 Inspect Distributor Cap -- Distributor Cap Cracked or Burned.
3 Inspect Fuel Filter -- Clogged or Dirty Fuel Filter.
5 Inspect Ignition Coil -- Faulty Ignition Coil.
6 Inspect Wireset -- Worn, Damaged or Faulty Spark Plug Wire(s).
7 Inspect Spark Plug -- Incorrectly Gapped or Fouled Spark Plug(s).
8 Inspect Starter -- Starter Motor Faulty.
9 Inspect Fuel Pump -- Low Fuel Pressure.
10 Inspect Solenoid Switch -- Faulty Starter Solenoid Switch.
11 Inspect Fuel Pump Relay -- Faulty Fuel Pump Relay.
12 Inspect Fuel Injector Pressure Regulator -- Faulty Fuel Injector Pressure Regulator.
13 Inspect Ignition Switch -- Improperly Connected or Faulty Ignition Switch.
14 Inspect Starter Drive -- Faulty Starter Drive.
15 Inspect Fuel Injector -- Dirty or Worn Fuel Injectors.
16 Inspect Fuel Pump Strainer -- Clogged or Dirty Fuel Pump Strainerat.
17 Inspect Engine Control Computer -- Incorrect Operating Information Being Delivered and Sent From The EEC.
18 Inspect Fuel Tank -- Fuel Tank Empty.
19 Inspect Carburetor -- Carburetor Flooded or Faulty Choke.
20 Inspect Distributor -- Worn, Loose, or Incorrectly Installed Distributor.

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I have a 1994 Pontiac Bonneville SSE.. won't start


It sounds like you have a short somewhere that is draining the battery...this type of thing is usually caused by a faulty voltage regulator. I recommend taking the alternator to an autoparts store to have it tested...don't be surprised if the alternator tests good; a faulty voltage regulator can and will drain a battery in a matter of hours. I am including a link where you can order a voltage regulator for your Bonneville or, while you are at the autoparts store, you can buy one there. The link will help you to see what the voltage regulator looks like so you can identify it in your engine compartment. Hope this helps, good luck!

Nov 05, 2009 | 1994 Pontiac Bonneville

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1 Answer

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ARE YOU SURE YOU NEEDED ALL OF THOSE THINGS?WHAT WAS THE ORIGINAL PROBLEM?BY SOME CHANCE WAS IT RUNNING ROUGH AND WERE HAVING A HARD STARTING PROBLEM TOO? DID ANYONY EVER CHECK YOUR EMMISSIONS?YOU WOULD BE AMAZED WHAT A CLOGGED CATALYTIC CONVERTER WOULD DO (MANY OF MY CUSTOMERS CAME IN WITH THAT ONE)

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1 Answer

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When was the last time spark plugs and wires where done? That could be a possible cause, also check the timing through the distrubotor cap.

Hope this helps

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