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Old 05 May 2012, 12:17 am
Cool Cruiser
Join Date: Dec 2010
Location: Northumberland PA
Posts: 261
Default p0304

awhile ago at school i had a miss fire where it shook the car on cylinder 4. changed plugs and wires. today i was driving back from my grandfathers and the check engine light dinged and flashed then went away. checked my code with my scan tool and same p0304. i also have the incorrect coolant in the system right now. tomorrow(saturday) it will be changed over to the green "universal" type. it has dexcool in there. could that be doing the miss? also how can i check that injector that is missing?
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Old 05 May 2012, 06:25 am
Obsessed Cruiser
Join Date: Sep 2001
Posts: 27,758
Default Re: p0304

First, that universal green coolant is NOT the right one to switch to. You want the HOAT orange coolant.

Second, Doesn't the scan tool that you used to check for the code have the program to go through all the different parts of the ignition system to check each one for trouble or is it just the tool for bringing up fault codes? An OBDII scanner can go through all the workings of the car to see what's wrong. Plus, your P0304 cold be a small crack or vacuum leak in the upper manifold and not a bad injector.
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