Question about 2001 Chevrolet Impala

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Impala code p1404 p0300 p0128

Blinkers not working

Posted by Anonymous on


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Posted on Jan 02, 2017

  • 43 Answers

SOURCE: P0128 code

Unless the car is overheating you probably just have a bad temperature sensor probably located on the intake manifold....

Posted on Apr 03, 2009

Testimonial: "i replaced the coolant temp. sensor and every thing is o.k. Thank's for the help. Your advise was right on."

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SOURCE: Chevy Impala 2001 w/ 3.8L engine - EGR stuck open

there are a couple of things, first make sure there are not restriction in the exhaust, i know the dealer has had to replace converters under warranty because of this problem, then theres a reflesh program for the computer due to this problem, and lastly,run with egr off make sure it clean of carbon,carbon gets stuck in pintle sets check eng lightbut carbon then blows by so when you remove egr you see nothing, well start with these good luck.

Posted on Nov 28, 2009

  • 1915 Answers

SOURCE: I have a 2004 Chevcy

Starting with the P0128, the temp that the engine computer will affect the settings it makes to your engine-that particular code specifically means that the ECU thinks the engine is running too cold-and it is telling you that by tripping a P0128. Check to see if your coolant temperature sensor is connected, or just replace it-they are not expensive (usually less than $15).

The P1811 is a manufacturer's specific code, and it means it has a faulty Pressure Control Solenoid, GM knows about it, there are TSB about it. Harsh shifts when hot. The best and cheapest thing to do is call GM and complain. Their number is 1-800-222-1020. These transmissions are known to be defective but have yet to be recalled. You can try a trans service and it might solve it, if you haven't had one done you should do it ASAP. Another thing you can try is to disconnect the battery, both terminals, and hold/tape the clamps together for at least 10 minutes, then reconnect them, start it up and let it idle for about 6-8 minutes, then gently drive it for another 10 minutes-all your sensors will 'relearn' and it might solve this problem.

The P0300 is a random misfire-who knows what caused that, have you done a tuneup lately (or at all?)- Your coolant leak needs to be found, and that can be done using a pressure tester on the cooling system-with the engine cold, you pressurize the cooling system and watch the gauge-it will drop if there is a leak, and it needs to be found. If you are lucky, it is a hose, but it could be the radiator or heater core, or internal to the engine (head gasket)-not good and expensive. These testers can be 'rented' for free at most commercial auto parts stores.

Posted on Jul 01, 2011

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Error code P0128

Trouble Code: P0128

Thermostat Range/Performance

Trouble Code Conditions: DTC P0107, P0108, P0112, P0113, P0116-118, P0335, P0336, P0300-P0306, P0401, P0505, P1106-P1108, P1259 and P1519, engine running at road load for 10 minutes, and the PCM detected the ECT sensor input did not reach the correct closed loop value. Note: It is possible for this code to set if the engine is left running while the hood is open for an extended period in a warm climate.

Possible Causes:

Inspect for low coolant level or for an incorrect coolant mixtureCheck the operation of the thermostat (it may be stuck open)TSB 01-064 (9/11/01) contains a repair procedure for this code

Jan 27, 2013 | 2001 Honda Civic 1.7

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P1404 code and p0420 car stalls

The P1404 means Driver Power Window Down Circuit Open
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I am getting codes PO 128, PO 300 and PO 506 on my chevy Impala, 2002, LS 3.8

code P0128 ECT ( electronic coolant temperature ) engine temperature to low ( replace thermostat ).

code P0300 engine miss fire detected ( replace spark plugs and spark plug wires )

code P0506 IAC ( idle air control ) system idle to low ( clean the IAC valve if problem persists replace the IAC valve )

Apr 15, 2011 | 2002 Chevrolet Impala

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