I have a 95 maxima that had a feul injector go completely bad and pump fuel constantly into the cylinder. All is well and the car runs great after the fix but my check engine light is on the the code is for the egr. I replaced the valve but the code is still present. I was told by a mechanic that I have to clean the egr channel. What is that and where is it? Am I gonna have to pull the manifold off again? Thanks!
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Re: EGR question on 1995 maxima 3.0l v-6
You don't have to pull off the intake manifold. take the egr off and clean the port is all. then the code has to be cleared.the egr is on the right side of intake(closest to the firewall. you can use a small wire brush or old toothbrush to do this. also check the wires and plug and if you egr valve has a vaccum line make sure it's not plugged loose or missing. use a lil bit of carb cleaner to clean port. replace egr and clear the code a scan tool will clear this code. please rate this thanks
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White smoke usually means that you have a blown head gasket,need to have it check out asap,could damage motor worse and cost more.How is your antifreeze in your over flow container,Is it low,check your oil and see what it looks like,might be milky.
engine miss caused by many things,weak ignition from bad ignition coil, ignition timing off if you have high mileage engine low compression from worn burned valves.could have something minor like stopped up air filter, clogged dirty fuel injectors, through the years i have seen many things cause engine to miss.
Air leak in the intake manifold, or in the EGR or PCV system.Base engine mechanical fault that affects only Cylinder 4.Fuel delivery component fault that affects only Cylinder 4 (i.e., a contaminated, dirty or sticking fuel injector).Ignition system problem (coil or plug) that affects Cylinder 4 .This is what is listed for your code.
Replace your fuel pump. When you run a vehicle completely out of fuel, you will pull all the sediment off the bottom of the tank, and this will indeed clog fuel injectors, but first it will clog your fuel filter. After replacing your fuel filter, purchase a high-octane fuel injector cleaner, and add it to your fuel tank as specified on the side of the fuel injector cleaner bottle specifies.
No only a defective injector van do this. if the injector is defective the plug on thet clyinder will be black. this will help you define which cylinder is bad and replace the fuel injector on that cylinder. But most likey it is a defective EGR valve casueing your problem.
Try some injector cleaner in the fuel--might be a problem in # 3 injector. One cylinder misfiring should not cause the engine to stall. Replace the fuel filter, and check the air filter. Does this engine employ a distributor or a coil-pack?
Start with testing the injectors for pulse. Get a NOID light they sell the at almost any auto parts store remove in get plug from injector and plug the noid light into plug look for constant steady (pulse)lighting of noid light. Check all six injector on your strait 6. If all is good remove parke plug wire on at a time from cap and look for increased shaking and less when it replaced(Make sure to use wire puller with rubber insulation to avoid being zapped by spark from coil) Note cylinder with no difference or change when wire is removed. Those would be the problem cylinders. Then get a compression guage and check all cylinders for compression by removing spark plugs and attaching guage to each cylinders, make a not of each cylinder's reading. NOTE THEY SHOULD NOT BE MORE THAN 10 PSI difference in cylinders. Make note of low compression cylinders if any. If compression is good all around spark plugs are good, good ignition wires and you have good pulse pattern from you noid light. The only other problem is BAD INJECTORS and those would be the ones that didn't change when you took off the wires. I have work on these old cressidaalot my self. Good Luck contact me if you need more help and if I solve your problem leave me a FIX-YA comment.