I having a bogging problem
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tony/ka24de
- Posts: 257
- Joined: Tue Jan 07, 2003 1:10 pm
I having a bogging problem
My car starts up fine when the car is cold,and runs ok untill the car warms up. Then it stutters and bogs, and the car wants to die at idle. I don't think it it my intercooler,bov or piping. Any suggestions.
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DanielIser
- Posts: 242
- Joined: Mon Feb 23, 2004 1:25 pm
- Car: SR20 Powered '91 240SX
Try unpluging the tps then looking on the intake manifol between the 2nd and 3rd runners, there is a little grey idle adjustment screw there, set the screw to your prefered idle then plug tps back in. My car has been doing the same thing and i just figured it out today, when the car warms up the intake manifold gets hot and the sensor goes haywire for some reason. If you need any more help email me at [email protected]
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Luke
I'm having the same problem with a occasional power loss after warming up. It idles fine but with a studder here and there. It just won't pull as hard after driving it a little while, even if I just baby it and shift under 3k, it loses it's pull.
All piping is tight, spark plugs are gapped at .28, and I'm still trying to figure out this gremlin.
All piping is tight, spark plugs are gapped at .28, and I'm still trying to figure out this gremlin.
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Rican_Nick
- Posts: 197
- Joined: Thu Feb 20, 2003 5:41 pm
Re: (Luke)
damn it.. same thing happenng to me.. i am searching for an answer right now!!Luke wrote:I'm having the same problem with a occasional power loss after warming up. It idles fine but with a studder here and there. It just won't pull as hard after driving it a little while, even if I just baby it and shift under 3k, it loses it's pull.
All piping is tight, spark plugs are gapped at .28, and I'm still trying to figure out this gremlin.
seems like this happens to a lot of people.. but i have yet to find an answer.. someone has to know!
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Luke
Whoa, thread resurrected from the dead!
Unfortunately my problem was too general to have an easy answer. I can list some of the problems i've fixed since then, or what I can remember of them:
-I was reading the timing the wrong way by using the coilpack wires. That crap just straight doesn't work with a standard timing light. I had to pull the coil pack out, run a spark plug wire from the coil to the spark plug, then hook my light to that plug wire. That helped finally getting the timing set correctly. Although soon, i'm going to do the CAS reset under the valve cover to make sure things are right. I have a new VC gasket anyway.-I found a ground wire the other day that ran from the head, and I had it bolted to the valve cover nut because I didn't know where it went originally. I found a plug on the firewall that it connected right to. That helped smooth some things out. So check all your grounds. (i'll get some pics up if you guys don't know what I mean).-I also had oil contamination on my clutch from a gear oil leak. I still do and it does hell on performance like nothing else. If you have a slipping clutch, it could be that.-Gapping spark plugs helped a lot, but already did that.
Can't think of anything else at the moment.
EDIT: Oh and when I recirculated the BOV, the difference is night and day! The cool sound isn't really loud anymore but I can still hear it well. It runs so less jerky getting on and off the throttle and it doesn't backfire anymore. Heathier for the engine too. (if you have the greddy type-s, this is worth the read http://www.evomoto.com/tech_in..._id=7 )
Unfortunately my problem was too general to have an easy answer. I can list some of the problems i've fixed since then, or what I can remember of them:
-I was reading the timing the wrong way by using the coilpack wires. That crap just straight doesn't work with a standard timing light. I had to pull the coil pack out, run a spark plug wire from the coil to the spark plug, then hook my light to that plug wire. That helped finally getting the timing set correctly. Although soon, i'm going to do the CAS reset under the valve cover to make sure things are right. I have a new VC gasket anyway.-I found a ground wire the other day that ran from the head, and I had it bolted to the valve cover nut because I didn't know where it went originally. I found a plug on the firewall that it connected right to. That helped smooth some things out. So check all your grounds. (i'll get some pics up if you guys don't know what I mean).-I also had oil contamination on my clutch from a gear oil leak. I still do and it does hell on performance like nothing else. If you have a slipping clutch, it could be that.-Gapping spark plugs helped a lot, but already did that.
Can't think of anything else at the moment.
EDIT: Oh and when I recirculated the BOV, the difference is night and day! The cool sound isn't really loud anymore but I can still hear it well. It runs so less jerky getting on and off the throttle and it doesn't backfire anymore. Heathier for the engine too. (if you have the greddy type-s, this is worth the read http://www.evomoto.com/tech_in..._id=7 )
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Rican_Nick
- Posts: 197
- Joined: Thu Feb 20, 2003 5:41 pm