thesubeguy Posted June 17, 2005 Share Posted June 17, 2005 pulled the codes on my turbo and it popped up 21 22 23 (coolant temp sensor or circuit, knock sensor or circuit, air flow meter or circuit) could all of these be related since they all popped up when i replaced my engine and its been running like crap, bogs down at times and others runs just fine is there one circuit that could just be outawhack or do i need to replace all these things? i also have to depress the accelorator all the way and crank it for about 5 seconds before it turns over and runs Link to comment Share on other sites More sharing options...
tizzle Posted June 17, 2005 Share Posted June 17, 2005 Start with replacing the coolant temp sensor I'd say, its a problematic piece, but cheap and easy to replace. Link to comment Share on other sites More sharing options...
TurboSPFI Posted June 17, 2005 Share Posted June 17, 2005 replace em all.. those are all 3 very important peices of info for the computer to rely on Link to comment Share on other sites More sharing options...
calebz Posted June 17, 2005 Share Posted June 17, 2005 Before you replace anything, clean the contacts and test the parts.. If you buy new, the MAF can be pretty expensive. Link to comment Share on other sites More sharing options...
froggymike Posted June 17, 2005 Share Posted June 17, 2005 Dealer wanted about $80 for a new knock sensor. Junk yard was $5. Mamma didn't raise no fool..... or did she??????? Link to comment Share on other sites More sharing options...
thesubeguy Posted June 19, 2005 Author Share Posted June 19, 2005 replaced the temp sensor and knock sensor off another engine that i have, still has codes being pulled for em. how do i test these different sensors? is there an amount of resistance that i need to find? Link to comment Share on other sites More sharing options...
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