idle and acceleration problems

Post by **Stee Flo** » Fri Jan 10, 2003 5:30 pm

I just washed my engine bay today and now my car is idling roughly. At a stand still the car kinda shakes and feels like it wants to turn off. When i accelerate, it feels sluggish and doesnt pull smoothly like before. Anyone have any suggestions? Could i have damaged something when i cleaned it?

Post by **Nismo_Freak** » Fri Jan 10, 2003 5:30 pm

If you didnt cover the distributer you may have gotten water in it. This sounds like the case... which means you need to replace it.

Post by **Blazin Hondas** » Fri Jan 10, 2003 5:30 pm

BS...Dude let it dry.I got water in there 2 times and if you dont drive it take off the cover, like you are going to replace the rotor, and let it dry over night, it should work. Unless you got a large amount of water in there and fryed it. If you did you need to replace it.

Post by **Stee Flo** » Fri Jan 10, 2003 5:30 pm

I took the cap of and looks dry. I did cover it when i washed it, so i dont think it is the distributor but i could be wrong. I changed my spark plugs thinking it was the problem, and it did help a bit. At first when i drove it, it was smooth, then the problem came back again. I drove it around a little longer to get the engine really warmed up and it got better. Ocassionally there was some sluggish acceleration, but it felt normal for the most part. Could it have been the plugs? Anything else it could be?

Post by **rschwalbe** » Fri Jan 10, 2003 5:30 pm

Check the wiring for the fuel injectors. I have some wiring issues on my injectors and sometimes experience the same thing. Also, you may have a bad injector.

Post by **tad_240** » Fri Jan 10, 2003 5:30 pm

Okay, this is the only thread that I could find that even came close to what i need to ask, so here goes;

I have a 90 240 and in the past two months I have noticed that the acceleration has been getting worse and worse. I have changed the following:

-fuel filter-bosch +2 plugs-new bosch plug wires-rotor and cap-oxygen sensor-MAF sensor ( only cause I found one for like $25 new)-K & N air filter -2 1/4 exhaust tubing-changed cat out to a high flow cat-some new hoses around the EGR and BPT valves

I did all of this as part of a tune up and as part to try and fix the stalling. Here are the symptoms:

-RPM's climb slow and gear range seems to shorten-it only does this in first and up to 3000 RPM's in second-when bogging down in first, and then shifting into second the exhaust pops, not like a back fire, but more like it is choking for air-after traveling at a higher speed (55-65mph) and come to a stop, the car is very boggish -after traveling at those same speeds, when I slow down, the engine still rev's at 1500-2000 RPM's on its own for about five to ten seconds If I give it gas at about 2500 RPM's for about five seconds and then ease into first, it takes off fine.By the way, all of the syptoms above are still happening after all I've done to the car, and it doesn't show a check engine light on the dash. I have done extensive searches and to no help.Any help or try to would be greatly appreciated! Thanks!

Post by **Stee Flo** » Fri Jan 10, 2003 5:30 pm

could it be dirty fuel injectors? You could buy some injector cleaner and see if it helps.

Post by **tad_240** » Fri Jan 10, 2003 5:30 pm

when it first started happening i put some sea-foam feul cleaner in the tank to see if that would help, it helped some but I didn't notice a huge difference. I had somebody on here tell me it could be my intake valves or something like that. They said that they might be getting gummed up or something along those lines. It is winter here in Illinois, and temp's have been getting down into the single digits, and it is even worse now. It just sounds like the engine is working so much harder and the speed gained per RPM is not as good. For example, you know your own car, so if you are at 3000 rpm's in second you know about how fast it should be going. But when it is bogging down, the rpm's climb on the tach at about the same speed, but the car doesn't go as fast as it should for being at that rpm. Also, when it is bogging down, it seems like redline becomes 5000 rpms. I am trying to explain, but it is just one of those things that you know is wrong because it is your car, and something is not right, but you can't put your finger on it. I will probably just break down and have a mechanic look at it, but I am the type that would always rather take the pride of solving it without going to one. Thank you for your rersponses, and any more help is greatly appreciated, also if there is anything i can help anyone with, i have nearly tore my car to peices and back again, so maybe i could help. laters :smoker

Post by **rschwalbe** » Fri Jan 10, 2003 5:30 pm

I got some of the same things going on. I am going to be replacing my injectors in the next few weeks cause I know mine are bad. I have seen several people out here with the same problem yet I have not seen any posting from the "Online Mechanic" telling us his/her thoughts on this. Let me know if you get somewhere!

Post by **tad_240** » Fri Jan 10, 2003 5:30 pm

well, i went out and started the car and checked for any mild hissing around the injectors to see if maybe any of them were leaking around the o-rings. I didn't smell anything but i did however notice that the rubber boot around the top of the injectors, where teh wires run into the injector, is cracked and really worn. also there is a electronic ticking coming from right behind the valve cover on top of the engine. there are a couple little boxes or relay looking deals back there but i have no idea what those are, until i can get a chiltons or haynes parts book. if any one knows what that might be, then let me know, and since we are talking about injectors, does anyone know where to get a high volume feul rail? if not that's kool, and let me know how the new injectors help, see ya

:smoker

Post by **rschwalbe** » Fri Jan 10, 2003 5:30 pm

Try e-mailing this guy: [email protected]

This is the place I am getting my Fuel injectors from in a couple weeks. I got their website from the 240sx.org website.

Post by **tad_240** » Fri Jan 10, 2003 5:30 pm

yeah i will have to try them, are you getting bigger injectors, or are you getting replacement injectors? i have never been able to find a feul rail for this car, on my last car, i found an AEM feul rail, but they either don't make one for the 2.4, or i can't find it. either way, i am just looking to get this acceleration thing to go away, and if replacing the injectors is the only way, then i am going to up the size of the injectors when i do, just to handle future mods, well either way, laters

:smoker

idle and acceleration problems

idle and acceleration problems

Sluggish acceleration

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