Code comes up as low rpm,s changed plugs and wires air filter and added injector cleaner to the gas still comes up low rpm,s but runs great

I recommend changing the fuel filter, air filter, and adding Seafoam Fuel System Cleaner into the gas tank to clean the injectors as well as replacing the wires.

If you need further help, reach me via phone at https://www.6ya.com/expert/steven_a67ead41eb5fc62a

If the RPM is high check for a vacuum leak. Examine all vacuum hoses for cracking or disconnections. If no problem is found, spray carburetor cleaner on the intake manifold and any other gasketed areas on the top of the engine. If, when spraying, the engine RPM fluctuates, then suspect a gasket leak where the spray is entering the engine. Also check throttle body for sticking. Clean it with carburetor cleaner.

Low RPM could indicate a clogged fuel filter, low gas, dirty or bad fuel injectors. If engine idle is low because it is running poorly (e.g., a misfire), check engine for misfire. Misfires can be caused by bad spark plugs, bad spark plug wires, bad fuel injectors, a bad coil pack, low compression in a cylinder, etc. Check the obvious cheapest things first.

If RPM is varying up and down, check Idle Air Control Valve (IACV) for sticking or obstructions. You may need professional help at this point.

Your best bet take it to a qualified repair shop that knows how to use scan data to find problems , not guessing ! A good repair shop could have diagnosed an fixed the problem with less cost then you put into already . Because without testing all I or anyone else on here would be guessing just like you . Carry on if you like making part stores rich .

002 Fuel System Tests Start Here

003 Fuel System Tests Scan Data Tests

I would check into replacing a fuel pressure regulator its easy to install and it usually under 10 bucks.

A few possibilities are worn engine mounts (the rubber mounts that take away engine movement and vibration).....or rough engine idle ( maybe poor compression in one or more cylinders or other factors)....or maybe the engine idle speed is too low (typically 700 to 1000 rpm is normal depending on if AC is running which takes up more rpm) Alex

.A}.could be the fuel filter ..B}.converter is plugging up .C} a vacuum line has come dry-rotted and or is come unattached and is sucking air .D} .idle speed is too low ..E}.The firing order is incorrect ! ....F}.clogged air cleaner ? ...G} check all fluid levels for proper fill levels . or it could be the choke sensor ids sticking or faulty ....have you tried running any fuel injection cleaner and a good grade gas this is just a minor list of points to start with after all we all get bad gas sometimes .

You don't need to change the spark plugs since it has only 31.5 K. The plugs should last 60K. There is a an adjustment at the gas cable end at engine to increase the idle a little bit. You can increase rpm at idle to 600 RPM. Since your RPM at idle is low that why it is shaking at idle, red lights. Let me know it it is shaking at high speed ( 2500 RPM)

take your car to a parts supply store and ask them to use the diagnostic scan tool. Sounds like it could be the map, maf, or the tps. at a minium take the throttle body off and clean in or take your air cleaner off and spray some cleaner in the body while the engine is running.

change plug and wire if its been a while most cars have 90000 miles platinum plugs in them.but the wires wear before plugs.so change plugs and wires.+clean fuel injectors .change fuel filter and air filter.if car still run rough your idling to low.have idling check .

Hi, i recommend changing the fuel filter and pump. these devices are dirty or clogged with debris. I also would recommend adding a fuel tank and injectors cleaner to the tank once you have replaced the pump and filter. this will scrub the fuel lines and injectors as well. this will increase the fuel economy of the car and it will clean the fuel system thoroughly. you should notice an improvement after you apply these changes to the cars fuel system.

Make sure the wires and plugs are in good condition. if the wires are old or fouled in any way, replace them along with a new set of spark plugs. change the air filter also.

please rate and have a great day:)