Performance & Maintenance Engine, forced induction, intakes, exhausts, torque converters, transmissions, etc.

so now the car runs, i have cel code 25, low idle when warmed up.

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Old 08-03-12, 03:40 PM
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MDSC
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Default so now the car runs, i have cel code 25, low idle when warmed up.

So pretty much car starts cold runs great smooth. Rev the engine everthing is nice and smooth. Once the temps get up to roughly 160 degrees, the engine idles down and i mean the hotter it gets the lower it idles. If you rev it quick when hot and let it idle down it will stall.
The flash out is #25 Air–Fuel Ratio Lean Malfunction
I got a brand new Denso Oem sensor i checked the connectors i got 5 volt signal wire hooked to the right connector and ground also 12v to heater. Im once again stuck.....
Also running no Intercooler right now but since its a map based system it should not matter much ? When i put volt meter on signal wire i get 0.1 volts when its idling low when i rev it i can make it jump to .05 volts
Old 08-03-12, 06:35 PM
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Update , now getting code 52 front knock sensor . Started to make sense reached my hand under there managed to pull the connector off. While looking at the plug after unplugging it I noticed a disconected feeling on the connector . When I pulled ever so slightly I ended up with what looks like a piece of 1 foot wire that has a metal crimP connector on it still and the harness pulled out of it...looks like I'll be pulling off the upper plenum now... Fun !
Old 08-04-12, 08:25 AM
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Above issue was my problem I soldered the Knock sensor wire and it idles good and no check engine
Old 08-04-12, 09:11 AM
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Candela
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THanks for the information MDSC, when you had that knock sensor CEL, did you notice the car struggle at around 3000-3500 rpm during strong acceleration?
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