First log - seem like timing issue

[peterpan223]

Hi, just installed jb4 a few days ago.
I'm in So California so only have access to 91.

I don't know anything about reading logs but know that anything above 3 is not good.
I am posting log at map 1 and map 0

I have installed HKS spark plugs about 8000 miles before jb4 install gapped at .22
I have secondary downpipe and cat back exhaust with drop-in panels.

Any recommendations would be appreciated

 

[cncBilly]

Hi, just installed jb4 a few days ago.
I'm in So California so only have access to 91.

I don't know anything about reading logs but know that anything above 3 is not good.
I am posting log at map 1 and map 0

I have installed HKS spark plugs about 8000 miles before jb4 install gapped at .22
I have secondary downpipe and cat back exhaust with drop-in panels.

Any recommendations would be appreciated

Those are both stock runs. Regardless they don’t look very good at all. Maybe you got a batch of bad 91. If 91 is the best you can get perhaps you might want to try an octane boost. For future logs start in 3rd gear 2500ish then go WOT hard into 4th before letting up. Did you gap the plugs to .022 or are you taking someones word on that?

 

[peterpan223]

Hi

I'm attaching another log on Map 1.
I am still having a lot of timing issues.
Gas is Chevron 91 in so cal

I seems to be having timing issues with Map 0 as well. Maybe not as severely but above 3...

I have gapped it on own and installed at a shop.

Any suggestions?
Do I have to replace spark plugs already?

 

[cncBilly]

Hi

I'm attaching another log on Map 1.
I am still having a lot of timing issues.
Gas is Chevron 91 in so cal

I seems to be having timing issues with Map 0 as well. Maybe not as severely but above 3...

I have gapped it on own and installed at a shop.

Any suggestions?
Do I have to replace spark plugs already?

Use the rest of your 91 in the tank. Switch to Shell or someone else’s quality fuel reset your ECU and try again. And you are sure the shop didn’t fiddle with the gap.

 

[peterpan223]

No I am not sure if they fiddled with the gap before installing.

I'll try a different brand of gas and reset the ecu, then post log again.

Thank you

 

[cncBilly]

No I am not sure if they fiddled with the gap before installing.

I'll try a different brand of gas and reset the ecu, then post log again.

Thank you

If they still look the same after that I think you should pull a plug and check for yourself. There’s a couple on the drivers side you can get at pretty easy if you’re worried about that.

 

[ChaneRZ]

Yeah. Put a new set of plugs preferably HKS and gap them correctly. I wouldn’t go on boost at this time. Timing corrections up to 8 degrees is bad.