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SVTPerformance's Chain of Restaurants
Tuning À la carte
chasing my tail.
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<blockquote data-quote="robert presti" data-source="post: 15620083" data-attributes="member: 175530"><p>Today I got things working pretty good. I would need to pull spark plugs to confirm the tune is going right. I'm working on a car that I believe has one or more bad cylinders. This is causing a misfire causing a lean wideband reading when it is really to rich for the bad cylinders. With new plugs and injectors I'm still seeing a bank to bank difference of 1. Which is an improvement over the 2 with plugs You could tell were fouled. This is the oddest part of tuning in my opinion is that you can get so rich it can show up as lean. Gas washing the cylinder to low compression. The first time I thought the coil was bad for that cylinder, but after the plug is always bad on that cylinder with different coils one has to wonder. Many days later a couple plugs still have a sheen, My guess is oil fouled.</p></blockquote><p></p>
[QUOTE="robert presti, post: 15620083, member: 175530"] Today I got things working pretty good. I would need to pull spark plugs to confirm the tune is going right. I'm working on a car that I believe has one or more bad cylinders. This is causing a misfire causing a lean wideband reading when it is really to rich for the bad cylinders. With new plugs and injectors I'm still seeing a bank to bank difference of 1. Which is an improvement over the 2 with plugs You could tell were fouled. This is the oddest part of tuning in my opinion is that you can get so rich it can show up as lean. Gas washing the cylinder to low compression. The first time I thought the coil was bad for that cylinder, but after the plug is always bad on that cylinder with different coils one has to wonder. Many days later a couple plugs still have a sheen, My guess is oil fouled. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
chasing my tail.
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