Is this bad?

[volcomsnow245]

I changed my spark plugs today From bpe6es to 7es and it seems like its idling at 650 on the safc is this okay and I checked the tighteness and the vac is at 10-13. Is this okay or too low.

 

[T is for TURBO]

With stock cams, thats too low Check for vacuum leaks. It should be around 16-18 vac

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[Boostinsideways]

I am running stock cams, idle is 750, 850-950 with ac/power steering cranked all the way. I see about 12 vac at idle, more on decel. Maybe crank the BISS out a turn or two.

 

[miguelmcv]

If is not Idling, Then, Adjust the BISS to get your target, 750 or 800.

 

[volcomsnow245]

I'm not sure if it has stock cams they have like a B on them. But anyways why would the plugs cause this.

 

[2gGst98]

Just a thought and a quick check did you didnt cross thread them did you. Not saying you did but i have seen people cross thread all 4 plugs and it wouldnt start.

 

[volcomsnow245]

No I didn't but good idea I thought the same thing but sadly it wasn't. My car idles at 650 I looked up a plug FAQ and it said to go down to 6es if you have idle problems. My car stumbles/hesitates/has no power/idles oddly/has lost gas mileage/does not perform well..."
If you are running platinum spark plugs and notice that your car isn't running right.... take them out and put in NGK BPR6ES spark plugs and see if your situation improves. I'm gunna try this. It's just weird I can't run the higher ones when I'm not that stock.

 

[2gGst98]

That was the next thing I was going to say. When I first bought my car it stumbeled, miss fired, just ran like crap. I changed the plugs from what he called upgraded plugs to the factory from the dealer and it was perfect.

 

[volcomsnow245]

Good point i've heard other people say that too and others say bpr7es are better personally I would rather have OEM I'll check those out or go back to the bpr6es.

 

[2gGst98]

Give it a try I do think it will fix it. It fixed mine.

 

[volcomsnow245]

Will do thanks!

 

[T is for TURBO]

Do a boost leak test. Bad idle, poor performance, low vacuum, and poor fuel milage are all indications of a vacuum/boost leak. Also, DO NOT adjust the BISS unless you have a way of knowing what the ISC position is. Ajdusting the BISS screw to compensate for an air leak can peg out your ISC and burn out the ISC driver on your ecu.

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[Boostinsideways]

When I suggested he adjust the biss I thought he just had a low idle. That is what its for after all. But yeah, it really sounds like you've got a boost/vacuum leak.

 

[T is for TURBO]

When I suggested he adjust the biss I thought he just had a low idle. That is what its for after all. But yeah, it really sounds like you've got a boost/vacuum leak.

Yeah, it is for idle, but you shouldn't just just blindly turn it in or out without knowing were the ISC position is.

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[volcomsnow245]

I'm not guloing to blindly mess with it I have the manual to do it but My car idles fine with bpr6es. I think Im going to save the bpr7es because they ran really good on high throttle.

If I leave the idle that low will it matter I mean 650 isnt too low? Idk

 

[zcoh2gdsm]

stock idle is about 750-900

 

[T is for TURBO]

Have you done a boost leak test?

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[volcomsnow245]

Yea I've done a boost leak test and I just discovered that my ISC screw is cracked off.