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1997 Chevy 1500 4.3L - Check Engine Error Codes


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Hey there,

 

I just purchased a 1997 Chevy 1500, the 4.3L model.

Its got about 150k miles on it, with a "recently rebuilt transmission".

 

Everything works well for the most part..

 

It doesn't start on the first turn of the key - you've got to do it a few times to get it to start.

The idle is a little rough at times - almost acting like the engine is going to die, though it never does.

 

Also, it has a bit of a rough transition between first and second gear sometimes..

 

So, I'm thinking a tuneup / o2 sensor / fuel filter..?

 

The codes I'm getting are:

 

P0171

P0300

P1870

 

Not sure what they mean.. Any thoughts?

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P0171 System too Lean (Bank 1)

 

P0300 Random/Multiple Cylinder Misfire Detected

 

P1870 Transmission component slipping

 

Check fuel filter and replace if necessary

 

Check fuel pressure and flow

 

I'd clean MAF and throttle body

 

Of course check plugs/wires

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