Plug contact

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Diggndeep
Scoobytruck Lurker
Posts: 5
Joined: Sun Mar 15, 2020 6:02 pm

Plug contact

Post by Diggndeep »

Wanted to get some opinions on my recent issue. 05 Baja turbo AT @ 198,000 mi. Driving to work with the cruise on it started pulsing while climbing hills. Got worse and CEL came on for misfire #2. By the time I got to work CEL was flashing and showed misfire on all cylinders. Shop found the #2 plug had the electrode smashed w 0 gap. Replaced plug and coil. Seems fine so far (25 mi). They think a chunk of carbon broke loose and contacted plug. I trust the shop and I assume an internal problem would repeat upon cranking. Any thoughts?
Diggndeep
Scoobytruck Lurker
Posts: 5
Joined: Sun Mar 15, 2020 6:02 pm

Re: Plug contact

Post by Diggndeep »

Update. The problem came back after 600 miles. Found a chunk of ring on top of the piston:( I will be going the JDM 2.0 motor swap. Would love opinions on keeping my turbo setup vs the twin scroll of the 2.0.
mike-tracy
Scoobytruck Master
Posts: 145
Joined: Wed Jun 05, 2019 9:30 pm

Re: Plug contact

Post by mike-tracy »

I'm assuming you're talking about an ej20x or y.

The manual transmission version has a td04 in twins scroll. The auto could come with a smaller VF turbo. I have that td04 on my legacy, it spools faster than the non twin scroll version.

I was expecting with all the hype that the twin scroll would make the car feel like a non turbo with no lag, but that wasn't the case. I had to source a different down pipe since the flanges are all different. The flanges are also different from the STI twinscroll.

My turbo is a TD04HLA-19t, and kinugawa sells a -20t version with slightly larger turbine. Beyond that, there are no larger turbos to upgrade to.
1992 Legacy SS, 5mt and heavily modified
2000 Impreza RSTi Coupe
2003 Baja, H6 and Dual Range 5mt swap
Diggndeep
Scoobytruck Lurker
Posts: 5
Joined: Sun Mar 15, 2020 6:02 pm

Re: Plug contact

Post by Diggndeep »

Thanks for the response! Shop has ordered an ej20x. Without spending additional money my options for turbo are either a TD04 or a VF44. Any input would be most helpful and I will continue to update through this process.
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