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Car Sputtering

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New User

May 3, 2013, 9:44 AM

Post #1 of 3 (1106 views)
Car Sputtering Sign In

I have a 94 Mazda Protege with a check engine light on. A month ago it started having problems with starting and the problem has escalated. It will turn over but will not start. If I give it 3-5 min it will get enough oomph & start but it is immediately sputtering upon start. Once I get on the road & build up speed it evens out enough to not die. When I stop at a red light, stop sign or have to reduce speed it begins to loose power & when I press on the gas it is slow to regain power & sputters from the muffler. The problem with starting is intermittent the loss of power & sputtering are almost constant. Aside from this it is using enormous amounts of gas.

I have replaced the fuel filter, O ring seal, Distributor cap, distributor seal and throttle body seal, spark plugs & spark plug wires. On a side note I have a non-working speed sensor. As I know the speed sensor sends signals to many things I thought perhaps their was a chance it was related to that. Any thoughts on what could be going on would be greatly appreciated.

(This post was edited by imaginethis on May 3, 2013, 9:47 AM)

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

May 3, 2013, 9:56 AM

Post #2 of 3 (1099 views)
Re: Car Sputtering Sign In

If you know you have a "non working" speed sensor than why are you here?


Veteran / Moderator
nickwarner profile image

May 3, 2013, 2:11 PM

Post #3 of 3 (1050 views)
Re: Car Sputtering Sign In

After changing all these parts knowing your check engine light is on, you might've wasted your money. First things first, get the codes scanned and post the results here. That is the first thing you look at. Most parts stores will do it for free. We need the exact code numbers, not just a generic description. Don't let them sell you a bunch of parts based on the code mentioning this or that sensor. It just wastes money. Give us the codes and we will help you figure out the direction you need to go in to diagnose this properly.

Your speedometer sensor doesn't make the engine run badly. Its not going to read anything when you're sitting there parked, is it?

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