C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Small Miss

Old May 24, 2008 | 02:01 PM
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$300vett
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From: Roanoke Rapids NC
Default Small Miss

Ok-- I have got a miss in the enging when it is at Idle or driving in your normal condition-- It also seems to go into Overdrive a little early during normal driving conditions. When you get down on it it seems to run fine..Or I cant really tell if the miss is still there. It sent out 2 codes--33 and 44--so I have change the ECM, O2 sensor,MAF,plugs,wires, and the coil. Check the fuel pressure it was good.. Dont't know what to do next--Fuel Injectors- Catalytic converter. It is not putting out no more codes... Any Help will be great..

Thanks, $300vett

OK--Pulled the cap off of the #3 fuel injector and no change in the motor. Reinstalled it and then pulled the spark plug wire off --no change in the motor-- I would like to know is there a shortcut way to check the injector with out pulling off the plenum or the pulling all the plugs to do a compresson check to see what I have a bad injector or a drop cylinder ??

Last edited by $300vett; May 25, 2008 at 06:06 PM.
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Old May 25, 2008 | 09:43 PM
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From: Carmichael ca
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The injector will make a clicking sound when its working. If its not its bad or its not being triggered. If it is clicking it may still be plugged and not working.
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Old May 26, 2008 | 04:47 PM
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Thanks---- I pulled the top of the injector off and no changes and then pulled the wire off of the plug.. no change.. So then I pulled the plug out and it had no gap at all on it so I set it back to .035 and it took the miss right out of it.. Don't know if I should be ill about the plug (paid a mechanic) to put them in with the wires...You would not think it would be that simple but glad it was. Done everything else myself...

Thanks again $300vett

PS. Still getting some Spark Knocking when you get into it.... Any Ideas?? Running 93 Oct--with fuel additive for about 2 tanks...

Re-check the plugs-- Wrong plugs installed-(thanks to the shop)-- Runs great now......

Last edited by $300vett; May 31, 2008 at 07:49 PM.
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