Random misfire fix
01-01-2014, 05:27 PM
#1
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iTrader: (9)
Join Date: Oct 2013
Location: Napa, California
Posts: 536
Car Info: 06' wrx (sold), 89' 325is
Random misfire fix
Hey guys and girls!
Well to start off with my issue. I bought my car early October with quite a few miles on it. I knew it was in good hands since it was a stock one owner car, always serviced at the dealership (even for oil changes hmm), and is still on the stock clutch with quite a bit of life left!
A month after I bought it I got the misfire issue. A solid cel misfire checking out on cyl 2. I was freaking out thinking I spent 8k for a lemon. I would clear the light and it would come back the next week becoming more and more frequent each time. Sometimes on cyl 1 sometimes 4 but most often #2. I never felt like the car was lurching when the light pop up, In fact it felt totally fine! Spending about a month and a half trying to figure out the issue going from swapping around my coil packs to changing spark-plugs. Ran injector cleaner. The whole 9 yards. What ended up being my fix was the grounding mod! I guess my sensors weren't getting the proper ground and a simple 10g wire from the negative terminal to the cyl 2 head, dipstick bolt, and cyl 1 head was the trick!
So if you're having a misfire issue but don't actually feel it, make sure it's grounded out properly. It just might be the quick fix answer you were looking for without emptying your wallet.
Well to start off with my issue. I bought my car early October with quite a few miles on it. I knew it was in good hands since it was a stock one owner car, always serviced at the dealership (even for oil changes hmm), and is still on the stock clutch with quite a bit of life left!
A month after I bought it I got the misfire issue. A solid cel misfire checking out on cyl 2. I was freaking out thinking I spent 8k for a lemon. I would clear the light and it would come back the next week becoming more and more frequent each time. Sometimes on cyl 1 sometimes 4 but most often #2. I never felt like the car was lurching when the light pop up, In fact it felt totally fine! Spending about a month and a half trying to figure out the issue going from swapping around my coil packs to changing spark-plugs. Ran injector cleaner. The whole 9 yards. What ended up being my fix was the grounding mod! I guess my sensors weren't getting the proper ground and a simple 10g wire from the negative terminal to the cyl 2 head, dipstick bolt, and cyl 1 head was the trick!
So if you're having a misfire issue but don't actually feel it, make sure it's grounded out properly. It just might be the quick fix answer you were looking for without emptying your wallet.
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