I recently changed the plug wires, fuel filter and spark plugs on my
1989 integra ls it ran great for a week or so then started consuming fuel very very heavily. the idle bog is back and has a very hard time getting started and running.
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Depending on the year make and model, a DTC (diagnostic trouble code) would help. Is the check engine light on when it does run? Testing needs to be done. Check for spark at the plug, make sure fuel pressure is what it should be and that the fuel injectors are working. If all that is good, I would check compression and timing.
i just had the same problem with mine and it was the fuel pump lossing power....i used a tester on all the wires going to the pump and when found right wire tester would send 12v to it and car ran great then when i removed it car would bog out or die...put back on and car ran good again...so i splised in to the wire and ran other end to fuse box under diverside dass and put on wiper blades fuse so goes on and off when i use key. Car runs great.....maybe you have same porblem... also change fuel filter (which is very easy to do..just look up here)
Hi, this is normally a fuel transfer issue. i recommend changing the fuel filter and fuel pump if not done already. I also would change the air filter as well.this will help with the air and fuel flow.
If possible, it would help even more if you would change the spark plugs and wires as well.
To top it off, Add a fuel system cleanser. Techtron makes some of the best fuel additives on the market. This type of fuel system cleaner will scrub the fule lines and intake as well, in return, cleaning out all carbon deposits that may be causing spuddering and obstructions.
Cheapest possible solution is the fuel filter. it is a black canister on the firewall with two steel fuel lines going into it. Beyond that, it could be your fuel pump ($100+) or your distributor(200+) . Check all your vacuum hoses for leaks. It will have to be driven by a mechanic to determine the true diagnosis.