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Hard starting 95 Mazda protege dx 1.5 l when cold

Bought this car in Cali came back to Nevada now it's gotten colder and the car is very hard to start in the mornings. After it is started and warm its ok. But if it cools down even a couple hours have to start all over again. Have replaced plugs,cap and rotor,plug wires,changed oil,also changed fuel filter.Have run fuel system injector cleaner thru system.What should I check next to solve problem?

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  • Cars & Trucks Master
  • 1,630 Answers

I would change the coolant temperature sender. Not the one for the gauge if it has one, the one for the computer. This is what tells the ECU to go into phase lock loop.

Posted on Aug 07, 2017

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Posted on Jan 02, 2017

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SOURCE: 2002 Ford Focus 2.0l SOHC running on 3 cylinders

I had this problem too exept I have no clue what parts or blah b;ah blah. I just know that my coil pack was getting fried.burnt out because my wires were bad. The mechanic I went to was a moron because I took the car to him 3 times and he kept saying it was the coil ad kept replacing it. I took it to my uncle and he said my wires were in horrible shape and when this is the problem it fries your coil making your car run like a lawn mower! Well all i did was replace my wires and the car ran great! Well I hope this helped..

Posted on Mar 26, 2009

GM Elec
  • 1000 Answers

SOURCE: 94 olds hard starts when warm, starts when cold and runs rich

If you can get a fuel pressure gauge, check and see if the pressure is 16 to 24 lbs after the engine has warmed up.
I would connect the pressure gauge when the engine is cold, make sure it does not leak or touch anything hot, place the gauge between the hood and the windshield and drive the vehicle until it is at the temperature you feel it "starts hard". Shut the engine off and try to repeat the no start or hard start and make sure the pressure is correct.
Also, when you shut the engine off, watch the pressure and make sure it holds and does not drop to (0 LBS) of pressure.
One last question, has the fuel filter been changed in the past 30K.
Let me know.
Regards,

Posted on May 08, 2009

  • 148 Answers

SOURCE: 96 gmc sierra hard to crank after 12-14 hours

that has a votec engine in it the fuel pressure is droping at knight and it takes 60 psi before the injectors will fire most likely cause fuel pump ,leaking injector ,or a feul pressure regulator

Posted on Jul 14, 2009

  • 1 Answer

SOURCE: cranks but won't start like it has no gas

Sorry to burst your bubble but a 97 jetta no matter what model including the trek I and trek II dont have transponders in the keys that didnt start untile the 2000 jetta's

Posted on Jun 19, 2010

  • 123 Answers

SOURCE: 1992 previa is hard to start only when cold. It

try to change the coolant temp sensor.

Posted on Nov 22, 2010

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