Question about 2004 Chevrolet Malibu Maxx

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P0201 -p0206 codes

I bought this car know that I was going to have to swap out the engine, it would start and run but it wasn't drivable (really bad knocking and no power). So I bought a used engine and swapped everything out. When I reconnected all the wires there were some errors that came up. mass air sensor and throttle body as well as the p0201-p0206 codes. fixed the other ones and I checked the connectors and rented a noid light and fuel line kit.. no light on the noid light and fuel pressure is good so I don't know what else I can check, there is obviously a disconnect from the pcm/ecu/computer to the injectors, and its frustrating because my mustang is dying a slow death while I spend money to fix this car up so it can become my daily commuter.. so my question is this, what else can I check/replace that would tell me if the pcm is bad or if a fuse is bad? or is it the harness leading up to the pcm that I might have to replace? everything else in that bundle seems to be working correctly..

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  • Chevrolet Master
  • 14,337 Answers

Here's a link to your codes,it's not a mustang but is the same problem,watch,then check your wiring. P0201 to P0206 diagnosis AND Buying ECM Jeep Cherokee Forum

Posted on Mar 18, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 4088 Answers

SOURCE: 1987 chevy s10 2.5l tbi will not start. changed

That eliminates the crankshaft and camshaft position sensors. Have you checked the fuel injector itself for an open winding or stuck valve plunger? There should not be a steady 12 volts to the injector--if good injector, it would be spraying fuel steadily into the throttle body. But at least the engine should try to run if poorly. Take the injector out, dry it off with air, and intermittently apply 12 volts to one terminal while grounding the other. You should hear a click from inside every time you touch 12 volts. If not, replace it. If it does, it may be plugged with debris. Try blowing through it in reverse with compressed air.

Posted on Jul 17, 2009

hawkwindbear
  • 5 Answers

SOURCE: 1987 chevy engine problem

you have to reset base idle see manual at library for procedure

Posted on Jul 19, 2009

  • 5 Answers

SOURCE: 1987 Chevrolet S-10 Pickup1987 chevy s10 2.5l tbi

Check the trottle body postioning sensor...

Posted on Jul 19, 2009

pippall
  • 1486 Answers

SOURCE: 1987 chevy S10 engine idle problem

relace the throtle air idle valve.The temp switch will allso cause this problem.

Posted on Jul 19, 2009

  • 1 Answer

SOURCE: 2003 Silverado 1500 HD 6.0 Liter starting issues

I am having the same issues on my Chevy 03 HD 1500. It takes at least two turns of the ignition to get it going. I have replaced the battery, Fuel Filter, Fuel Engine Relay and I am now Replacing the Starter Engine Relay. If you have any other suggestions let me know! I will share as well. Also, last couple of days Oil Pressure Gauge is acting strange. It will read from 1/4 point to 3/4 point while driving. Working on that as well.

Posted on Sep 10, 2010

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Test your fuel injector for cylinder #3 ! Do you know how to do that ?
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Testing Fuel Injectors Fast PCM Driver Testing II without scan tool Did you just replace the PCM - engine computer ? Didn't test anything !

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http://www.explorerforum.com/forums/showthread.php?t=228242

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How can I be sure if my PCM is bad???


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Code 27 MIL light options: OBDII
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P0202 - Injector #2 Control Circuit
P0203 - Injector #3 Control Circuit
P0204 - Injector #4 Control Circuit
P0205 - Injector #5 Control Circuit
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P0305 - Cylinder #5 Misfire
P0306 - Cylinder #6 Misfire
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P0352 - Ignition Coil #2 Primary Circuit
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1 Answer

Missing error code P0201


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