Question about 1996 Chevrolet Blazer

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When scanned the trouble codes po101, po171 and 174 and po300 appear and 1996 blazer, v-6 vortec refuses to run over 30 mph, I think the Mass air flow sensor is bad and causes the other 3 codes to appear. advise

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U seemed to answer ur own question

Posted on Oct 07, 2009

Testimonial: "I had a feeling that is what it is. should be an easy fix. Thanks"

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1996blazer runs good, get up to 30-35 hesitates until let off gas and press again, when it hesitates black smoke and sputtering

It sounds like you might have a misfire that is causing the engine to run rich, hence the sputtering and black smoke. When is the last time that you replaced the spark plug wires and the spark plugs? If the 1996 plug wires are like the 1997 plug wires used on the 4.3L S-10, they can be pretty difficult to get a reliable connection at the distributor cap.

Jun 03, 2017 | 1996 Chevrolet Blazer

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Po101 code

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. Check for air leaks on or around any intake pipework using a good spraying of carb cleaner, if the engine surges then that's the leak. Check wiring to Maf and if the inside is dirty, again use carb cleaner liberally...NOTE: do not use Wd40... If the code comes back, it may be necessary to replaced the mass air flow sensor.

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2006 Volvo xc90 trouble code po101

did you reset code,any vacuum leak.

Mar 08, 2013 | Cars & Trucks

1 Answer

What do all these codes mean PO135-PO300-PO404-PO102-PO440

po135 is o2 sencer on drivers side. will be the first one. po300 is random/multiple misfire.po404 is a egr code. po102 mass air flow circuit low input. po440 evap emission control system malfunction

Dec 23, 2012 | Cars & Trucks

1 Answer

Po101 , po101pd, po128, po446 diagnostic codes for 2000 s10 blazer

While I don't have your specific book, the GM's of this world and many models employ similiar codes. PO 101 should be your MAF sensor (Mass Air FLow) and something equally with 101pd. The sensor itself is probably located on or near the air duct between your filter to the engine throttle body. As for the rest, they are related with the emissions control as well. Sometimes, when you have multiple sensors readouts, and you're not sure where to start, start cheap, and go from there, as sensors can trip the other sensors. Hope that helps

Feb 16, 2011 | 2000 Chevrolet Blazer

2 Answers

1999 gmc yukon obd11 codes po101 po171 po174 po429 what could be the causes

ok heres problem 101 is mass air flow sensor 171 running too rich 174 running too lean can find 429 but it the same lines i believe take out your mass air flow sensor and clean it check it connection if comes back on replace the mass air flow sensor

Sep 24, 2010 | GMC Yukon Cars & Trucks

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1995 chevrolet blazer stalls when you slow down

try checking air cleaner box to be sealed or dirty air filter and try to clean mass air flow sensor also check for dirty air intake only clean mass with special mass cleaner . also look for vac leaks and fuel pressure .

Jan 28, 2010 | 1995 Chevrolet Blazer

2 Answers

94 Blazer, 4.3L Vortec Engin runs fine for a

Could be a fuel issue, Start by changing the fuel filter, if that doesnt work you might want to drop the gas tank and check the strainer on the fuel pump and make sure the tank is clean.

Jan 20, 2010 | Chevrolet Blazer Cars & Trucks

1 Answer

Mercedes C280 1996- What and where is a Mass or AirFlow Circuit Range/Performance problem- code Po101 and Fuel Trim Malfunction Code P0170, my car will not pass smog due to this, please help. Thanks

This is difficult because the computer can't detect a problem, your car thinks everything is ok. In reality what is happening is the electrical component inside the MAF sensor becomes contaminated by the impurities in the air (heavies) These containments imbed themselves to electrical component that senses the air flow causing the sensor to be slightly off, but not enough to trigger the MIL (malfunction indicator lamp). Replace the MAF sensor with a new sensor and you're problem will go away, plus your car get better mileage and performance. (Mass Air Flow MAF sensor

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