lmdew Posted January 19, 2016 Share Posted January 19, 2016 I did the engine swap a couple of years ago. Sold it to a fellow at work. He had the knock sensor P0325 & misfire on #3 P0303 pretty random for over a year. I suggested the normal: NGK Copper Plugs NGK Spark Plug Wires Gave him a knock sensor to put on gave him a set of fuel injectors to swap in He wanted to sell the car, so I got it back. He had not followed my advice on the NGK plugs and wires so I installed a set and drove the car for a couple of weeks. I sold it to another family friend the they drove it for over a month before the P0325 & P0303 codes came back. There is a slight miss, but over all runs well. About 210K mileage, 5sp. I have not adjusted the valves or taken a compression test. Other things? Thanks, Larry Link to comment Share on other sites More sharing options...
mikaleda Posted January 20, 2016 Share Posted January 20, 2016 Might be some carbon built up on a valve, could do seafoam cleaning. Link to comment Share on other sites More sharing options...
johnceggleston Posted January 20, 2016 Share Posted January 20, 2016 i'm usually suspicious of ''cure-alls'' but seafoam?????? Link to comment Share on other sites More sharing options...
mikaleda Posted January 20, 2016 Share Posted January 20, 2016 Yes seafoam down the intake could knock carbon of off a valve and cure a missfire. I've done it before, could use water as well. Link to comment Share on other sites More sharing options...
mikaleda Posted January 20, 2016 Share Posted January 20, 2016 Sounds like they checked everything else out. Link to comment Share on other sites More sharing options...
gravitate Posted January 20, 2016 Share Posted January 20, 2016 I had the same thing happen with my 99 when I swapped. There was a small crack in the knock sensor. But you said you replaced it so my next thought could be what happened on my 91 when I swaped engines. The single blade that is in one side of the connector for the knock sensor got pushed out the back a little so it never seated in the other connector. Just a thought Link to comment Share on other sites More sharing options...
lmdew Posted January 20, 2016 Author Share Posted January 20, 2016 New knock sensor on order. I swapped in a used one, that ohm out correctly. New one going in and a seafoam treatment. 1 Link to comment Share on other sites More sharing options...
wtdash Posted January 20, 2016 Share Posted January 20, 2016 Hi, Depending on your 2.2 - HLA vs SLA - I'd check the valve clearance if SLA.....easy(er) to do on the SOHC. If you've got the Leak down tester, I'd do that and a Comp. test as a 'health check'. GL TD Link to comment Share on other sites More sharing options...
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