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tomtom72 · 07-24-2011

I knew I should have gotten around to learning this stuff sooner!

Dom, I will have to go look at the manual for my scan tool and I'll report back. I have no idea because I have never been this deep into it's usage beyond doing a closed loop scan at idle

.....I know, I know, then why have a scan tool...I'm a bit slow on the uptake because I don't play well with software.

The motor is bone stock. I didn't change the plugs this year, but in the past yrs I generally do so every spring in prep for my emissions inspection. I have never seen anything on the plugs. I have a picture chart for reference use, and my plugs are almost like new at every change. I can take pictures of past plugs & post'em....but I swear there is no fouling, no heat discoloration, no metal pitting or/and transfer & no insulator erosion or pitting....although this set in there now will have been in service for about 8 or 9 thousand miles by now and I shall pull them & look. The fuel filter is in service for two yrs now. The pumps tested okay last year, but I'll run a test now to lock that down.

Thank you Gentlemen, Bob and Dom, for help!

Tom
Forgot this, I use delco 41-602's gapped at .035

07-24-2011	#6
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,609	Re: spark knock problem I knew I should have gotten around to learning this stuff sooner! Dom, I will have to go look at the manual for my scan tool and I'll report back. I have no idea because I have never been this deep into it's usage beyond doing a closed loop scan at idle .....I know, I know, then why have a scan tool...I'm a bit slow on the uptake because I don't play well with software. The motor is bone stock. I didn't change the plugs this year, but in the past yrs I generally do so every spring in prep for my emissions inspection. I have never seen anything on the plugs. I have a picture chart for reference use, and my plugs are almost like new at every change. I can take pictures of past plugs & post'em....but I swear there is no fouling, no heat discoloration, no metal pitting or/and transfer & no insulator erosion or pitting....although this set in there now will have been in service for about 8 or 9 thousand miles by now and I shall pull them & look. The fuel filter is in service for two yrs now. The pumps tested okay last year, but I'll run a test now to lock that down. Thank you Gentlemen, Bob and Dom, for help! Tom Forgot this, I use delco 41-602's gapped at .035 __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member Last edited by tomtom72; 07-24-2011 at 11:43 AM.