Discussion Starter 1 Apr 14, 2015. I have been getting this P0300 code on my 06 Solstice at 5000RPM or more and the engine goes into fail safe mode and then clears the engine light symbol. I seemed to notice it after I installed the K&N cai. The scanner suggests bad fuel and spark plugs. Problem goes away for several weeks On my way to a camping trip she throws the P0300 code again stumbling and bumbling 2 hours from home. We finish camping and I limp it home on back roads. Now comes the fun part of throwing the kitchen sink at it trying to figure out the issue. New plugs and wires, new coil rail, new crankshaft position. The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes". It is free and, using an ELM327 or ELM323 interface, can be used to read the fault codes. For more details, go to our EOBD-Facile car diagnostic software page. Select the family of the DTC (OBD codes) DTC from P0000 to P0299 (airfuel mixture control) DTC from P0300 to P0399 (ignition system control) DTC from P0400 to P0499 (auxiliary emissions. HOW TO FIX CODE P0300 RANDOM MULTIPLE CYLINDER MISFIREIf your car has engine light on and code P0300 Random Cylinder Misfire Detected, we will explain what c. P0300 Random Misfire Code (several components involved) P0301 01 Misfire FoundDetected P0302 02 Misfire FoundDetected P0303 03 Misfire FoundDetected P0304 04 Misfire FoundDetected . this misfire is not easy to diagnose because comes and goes of this misfire depends on the engine operating conditions or the engine load. The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks; intake gaskets are a common cause of multi-cylinder misfiring. If no leak is found, the next step is to replace the spark plugs. If the problem persists, more tests need to be done to diagnose the problem, see "Possible Causes".. P0300 Trouble Code Diagnosis- Chevy Trailblazer reduced engine power message andor check engine light with any combination of the following diagnostic trouble codes p0107, p0112, p0452, p1120, p1220, p1221, p1271, p1275, p1280, p1481, p1515 The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be. P0300 is a multiple misfire, if it was one its be 301 302 303 etc. 2006 GMC SIERRA 2500 HD LBZ. MOTOR EFI LIVE DSP5, EGR BLOCKED, 5" MBRP STRAIGHT PIPE W 7" TIP, 3" DIAMOND EYE DOWNPIPE. EXTERIOR CHROME TOWING MIRRORS, CHROME LED DOOR HANDLES, RECON SMOKED NNBS CAB LIGHTS, LED TAIL LIGHTS, LED TAILGATE BAR, LEDHALO HEADLIGHTS, GM TOOLBOX. What is P0299 Code Chevy Cruze. Likes 600. Shares 300. 1,968 Posts. 2 Oct 31, 2010. Well if it&x27;s a random misfire it could be numerous things, first thing i&x27;d check is the spark plugs myself, then deal with the other Gaskets as they come, could also be Vacuum leak as well. It&x27;s Air, Fuel, starving or too much it all depends. check plugs first. B. Cobra Forums New Edge Cobras P0300 Comes and goes oxfordsnake Sep 30, 2012 Prev 1 2 May 13, 2013 21 006 Slow mustang (Established Member Joined Sep 18, 2002. pretty sure that is an evap code, comes and goes whenever, my 01 has had the same code pop up off and on for 6 yrs, 3 Re Check Engine Code P0420 -- HELP . Check engine code P0300 By CSteen85 in forum 3.8L V6 Naturally Aspirated (L36)(L26) Replies 5 Last Post 05-02-2010, 1145 AM. What is AiieVA. Likes 964. Shares 482. Joined Apr 23, 2002. 3,212 Posts. 6 May 24, 2003. This is a well-known code. P0300. I had it when my car was only about 6 months old. You get it because of an intermittent short circuit in the Fuel Injector wiring harness. The harness shorts out on some cars due to inconsistencies in the factory routing of the harness wiring. Although there are many reasons why you may get the P0300 code, but here are the most common causes Worn out or faulty plugs Worn out coils or plug wires Poor fuel quality Bad fuel injector Distributor failure Bad oxygen sensor (s) Engine time-off Low compression from the engine Defective crankshaft sensor Defective camshaft sensor. The p0300 code for a Chevy Traverse is the same, more or less as a check engine light. There is no way to reset the check engine light on the vehicle. It comes on when there is something wrong with the car, but it can be caused by just about anything. Due to this, it is not worth Your time hunting down a random issue unless it is something very obvious that has gone wrong. Upside is a retail technology company on a mission to help communities thrive. People earn cash back, businesses earn more profit, and communities thrive. What causes the noise Lets look at 2 different clicking noise scenarios. 1. Clicking while the AC is running If you gradually hear clicking coming from your outdoor unit, theres probably a small object obstructing your units fan. Solution Turn off your AC and check to see your outdoor unit to see if anything is blocking the fan.Remove any objects that obstruct the fan blades.