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Got a p0300 code on a 2000 Buick Regal GS. Put new plugs, new wires, and swapped coil packs and the check engine light still flashes at above 70 MPH. Runs fine so i am wondering what to do next. I also dumped injector cleaner in the gas tank last time i filled up and didnt work.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 99 toyota check eng.lt on code po300,po303,po305,po171,p0420

First Dan these car s are very sensitive, you don't ned to go to the dealer go to you local auto-zone and have dem check the light its free. I could be a number of things but just for starters if you have more than 60,000 miles, it could mean you need oxygen sensor but don't guess have it checked and get back to me I will be more than glad to help. Good Luck. hey and leave me a rating.. thanks

Posted on Dec 15, 2008

  • 12 Answers

SOURCE: Flashing Check Engine Light 99 Camry

light flashes when comp. picks up a skip pull code and it will be po300 random miss p0301 p0302 p0303 p0304 all are for that # cyl that has the miss best bet change wires and plugs check for oil on wire to plug end in spark plug hole leaking valve cover gasket or spark plug tubes...

Posted on Dec 31, 2008

  • 92 Answers

SOURCE: 2000 toyota camry check engine light is on code P0128

if you are refuring to the yellow check engine light. thats an emmision control light, it's not related to
oil or water capacity. it has only to do with emmision control devices. if the light is on steady. bring it to your mechanic and have him or her pull codes from your on board computer as soon as possible. if the light is flashing bring it to them now. stop driving the car or damage will be done to your cars converter.
good luck chris

Posted on Mar 22, 2009

  • 176 Answers

SOURCE: I have 2000 Buick Regal GS. Check engine light

the code should be read with a scanner, when check engine blinks, not a good sign

Posted on Jun 30, 2009

  • 6 Answers

SOURCE: 2000 toyota 4runner pulling a random misfire in

try a new crankshaft sensor not hard to change 2 bolts and a wire

Posted on Jul 30, 2009

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