Question about 1997 Pontiac Trans Sport

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1997 Pontiac transport has a code P1406,P1870,P0141,P0141. How do I fix this p-codes?

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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dsacco86
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SOURCE: Missing, stalling Pontiac Sunfire

The OBD II code for P0400 is Exhaust Gas Recirculation Flow Malfunction.
I'm sure the only thing you have left is you may have to replace the EGR valve or check for any leak from the vaccum lines going to to EGR valve.

Posted on Jun 01, 2009

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Molson02536
  • 3854 Answers

SOURCE: replaced both sensors in a 2004 Pontiac Grand Prix P0135 P0141

A code P0135 may mean that one or more of the following has happened: = O2 Heater element resistance is high
= Internal short or open in the heater element = O2 heater circuit wiring high resistance = open or short to ground in the wire harness. 
What to do; = Repair short or open or high resistance in wiring harness or harness connectors.
= Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
A code P0141 may mean that one or more of the following has happened:

Same as above: mentioned in P0135.
What do do is the same as above, so i am leaning towards and faulty wire harness since you have replaced both O2 sensors. Make sure the wire harness has no break in it or crushed connection clips. The other thing to look for is a bad fuse that is used to heat up the O2 sensor. It may not say O2 sensor on it, it may piggy back off something else so check all the fuse and make sure the O2 has a good ground and not corroded. Good luck and hope this helps. 

Posted on Jun 25, 2009

  • 462 Answers

SOURCE: my 1997 pontiac transport van will not start

CHECK FOR FUEL AND SPARK FIRST.
CHECK ALL THE CONNECTORS ON EVERYTHING, ESPECIALLY THE IGNITION MODULE CONNECTIONS. THE CRANK SENSOR OFF THE BACK OF THE ENGINE COMES UP ALONG THE FUEL LINES AND CONNECTS TO THE IGNITION MODULE.

Posted on Jul 12, 2009

  • 1 Answer

SOURCE: 1997 pontiac grand prix se has code po401. I

the egr value tubing also gets corroded with carbon. take tube off and use a wire brush to clean tubing. i talked with a mechanic and he said he has never seen an egr valve fail. most if not all egr problems are due to carbon build up in the egr tube. clean egr tube interior.

Posted on Jul 14, 2009

  • 31 Answers

SOURCE: HOW TO FIX A BLOWN HEAD GASKET ON A 1997 PONTIAC

This is a very lengtht process so my suggestion to yoy is to go to an auto parts store and ask for a "chilton book" for your vehicle.this book will walk you through the process

Posted on Apr 16, 2010

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1997 buick lesabre code po1870


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The Powertrain Control Module (PCM) monitors the Torque Converter Clutch (TCC) slip by calculating the difference between the engine speed and the transmission output shaft speed.
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Code P1870...What does it mean??? - GM Forum - Buick, Cadillac ...

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Codes1406 and 1441 coming up what can it be


Four digit codes are brand specific.
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Jan 22, 2014 | 1997 Pontiac Trans Sport

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Jun 10, 2011 | 1997 Pontiac Bonneville

1 Answer

97 pontiac sunfire 2.2L engine has trouble starting when engine is cool I have to give it a little gas to start it but when engine is hot starts just fine. Had fuel injector cleaned and a induction replace...


po141 code is downstream oxygen sensor heater or circuit fault. that should not keep it from starting cold...but cars are funny like that!!
i would get that fixed and go from there

May 27, 2011 | 1997 Pontiac Sunfire

1 Answer

1997 pontiac firebird 3.8 L sending a P1406 code, not in book. isdle is very rough. plugs and wires are new, So is Cat.


P1406: EGR Valve Pintle Position Circuit. Check for carbon buildup in the EGR Valve as well as make sure it moves with ease . I would also check the vaccuum line everywhere but look closely near your canister and follow any vaccuum hose going to the EGR vavle circuit for any dry rot or being loose. I hope thsi helps and good luck.

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