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Is this idle ok?

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FilmerDude

Proven Member
201
6
Nov 10, 2014
Temperance, Michigan
Used to idle around 1500 and now once my car starts it goes from 1500 to about 1100-850 range and sounds like the video attatched. It has stock cams so I'm wondering if something is wrong or not LOL. Occasionally it dies but starts right back up.

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Definitely sounds like a misfire. Is your check engine light on and has any work been done on it lately or did it just happen all of a sudden?
 
You have a bigger then stock turbo so it could be that you are using too hot of a plug, and they are bad, I would think you should have at leat bpr7es with the turbos you have, it can also be that your upstream o2 is bad and you are running rich so your plugs are fouling. Rock auto has densos o2 for less then $30 right now. And for $10 you can buy new plugs from autozone. But I would suggest changing both at the same time.
 
Yeah I noticed my plugs were fouled after I threw my 14b on so I got some cheapos from autozone which probably was a bad idea and my upstream O2 could be bad. I have 2 different plugs that it can go into. One of them it reads 2 volts and once in awhile it'll go to 3 barely. Then if I plug it into the other plug it changes from 4-7 volts constantly. Kinda stumped on what's happening. Might also be my IM gasket
 
Used to idle around 1500 and now once my car starts it goes from 1500 to about 1100-850 range and sounds like the video attatched. It has stock cams so I'm wondering if something is wrong or not LOL. Occasionally it dies but starts right back up.

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I'm having idle problem with my 1G currently, it only happens when I first start it....it's would idle at 1500 rpm and then to 2000 for like a good 1.5 min. then it would drop to 500rpm. Im still trying to figure it out, wondering if it's my throttle body or the timing is off.
I don't know if anyone is experiencing the similar problem?
 
I'm definitely thinking a tune will fix your problem. I see other people have suggested gaping your spark plugs a bit more, that is a good route to follow. Since this only occurs at idle then a proper idle tune should do the tricl, especially if you've bolted anything on recently.
 
Another reason could be a dirty intake manifold. But before opening it up, it would be better to replace the plugs and wires make sure to get the oem parts.
 
Did a bit of testing today. My input and out CAS signals on my tuner reads as follows-
Input CAS(ECU)-97-99DSM
Output CAS(Actual CAS)-95-99DSM

My CAS is a 97-99 and when I set the output signal to that it doesn't start at all but when I switch it back it fires right up.
Anyways I tested some other things since the weather calmed down for a bit.
-Injectors
-CAS
-Plugs
-Wires
I still have to test IM gasket and the O2 sensor is only reading .3-.4 volts so I'm not sure if that means it's dead or not

The car usually will run ok for about 30 seconds at 1100rpm and drop to 900 and misfire until I shut it off and usually it will die out within 20 seconds of misfiring.
 
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