Divewjason

I'm finally down to the last small problem on my car. It's been a rough road on getting this car to run right but it was worth it.

Now for the final repair I have to make: My car is idling rough. It doesn't idle rough in Park. I haven't tried neutral yet, but if I have my foot on the brake at a stop light my car will shake and I'll see the idle drop down on my rpm gauge for a split second and it will go back up. It will do this repeatidly.

I checked the codes, I'm throwing a knock sensor code. I heard that the knock sensor can mess with the idle so I figured that might be it.

My Dad had other ideas, he wanted to put in this BG-44k stuff into my car, when he did that, the car didn't shake at the stop light. However, once I had to fill up the gas again, it idled as bad as ever.

Is this really my knock sensor or is it something else? Was the BG-44k that stopped the shaking for a bit do something to temporarally help the knock sensor? This really has me puzzled, any input would be appreciated.

oldngivout

iTrader: (8)

Knock sensor has ZERO effect on the engine idle. You need to keep looking.

ROCKART

iTrader: (23)

yea KS has nothing to do with idle.

sounds more like an intake/throttle problem

have you cleaned your throttle body and idle air control?
that causes 90% of rough idles, tho i would have to see it to know


also, now seeing you have a 99, it could be coilpacks, but the CEL would show it if it was


id be glad to take a look at it this weekend

pmed you my cell.

Divewjason

Thanks. I will check my work schedule today and see if I can do it.

I have not cleaned any of that stuff, I have no idea how. I guess I should check the stickies.

Divewjason

By throttle body do you mean the TPS? My car is showing the systems of a faulty TPS. Although it may be just dirty.

ROCKART

iTrader: (23)

TPS is throttle position sensor.
that should be ok unless you (or someone else) has messed with it in the past. its a pretty sensitive item.


throttle body is this.

http://forums.maxima.org/showthread....+throttle+body


the pics have been deleted tho cuz i changed my photobucket, so it is

Divewjason

Alright, thanks a lot ROCKART.