Question about 1997 Nissan 200SX
I'll take a guess here. It's probably one of two things but condensation cause the problem.
check the seal on the Distributor !
Posted on Feb 04, 2013
If they are getting carcon build up then you have a weak ignition control module and the wrong spark plugs . with the wrong spark plugs it is running and working hard
Posted on Dec 04, 2012
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Posted on Jan 02, 2017
it sounds like you have a weak spark. take the spark plug that fires good and put it on each of the other three wires, if it still fires good then the problem is your plugs...energy not coming through them. if no change then swap the wire and plug that fire good together onto another position on the cap, if it fires good in another position then its the wires. if it still doesn't change and the cap and rotor are new, i'd look at the coil.
Posted on Mar 13, 2009
Is the EGR valve leaking, to check this feel the EGR valve at idle, it should not be hot, if it is the valve is leaking and should be replaced, the second common cause is intake manifold vacuum leaks, u can check this with a can of spray carburetor cleaner, if there is a leak the idle will change as u spray the area of the intake that has the leak, also look for split or loose vacuum hoses, then there is the fuel injectors, u could have one or more that are not spraying correctly from carbon or sludge on the injector tip, the dealer can run an injector flow test to determine if that is a problem, last is low cylinder compression or ignition problems, all cylinders should be within 5% of the highest reading, more than 5% and a rough "ratty" idle is the result. I am a tech of 35 years and this is the order i go in to find these types of problems.
Posted on May 02, 2009
SOURCE: R&R EGR Valve 97 Nissan
It takes a 17 mm wrench to losen the tubing on both sides of the valve. Then it is a matter of unmounting the bracket and pulling off the vacuum line. Make sure that you losen both lines BEFORE unmounting the bracket or you will never get it off. Sometimes getting the tube fitting (flare nut) loose requires a flare nut spanner wrench. Some EGR vlaves on have one flare unt and have gasket under the EGR valve where it mates to the manifold. Make sure you replace the gasket if yours has one.
(flare nut spanner wrench)
I also recommend that you use a long piece of solid copper wire #10 to push through the tubes to remove the carbon build up.
It really is a matter of time. The most difficult thing about changing an EGR valve is getting the flare nut(s) loose.
Thanks for using FixYa.
Posted on Jun 22, 2010
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