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Engine Management, Fuel, Spark, EGTs, and Air/Fuel Ratios This forum includes modification, tuning, repair, replacement, identification and restoration of all components mentioned above including SMEC, SBEC, Logic Modules, aftermarket engine management, etc. Nitrous oxide posts go in here. This is the place

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Old 03-30-2005, 12:44 AM   #1
timing belt off one tooth?  
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Could the cam timing cause a td to idle higher than spec when coolant temp sensor is disconnected? I was told that when you disconnect the cts and the engine dies it could be a sign that the timing is one tooth off. I'm thinking I'm one tooth off the other way. So far everything checks out. AIS, tps, min air flow 600rpm, (vaccume 18 at idle, 5 speed). Right now I'm in limbo (7psi). Waiting to pass smog so I can at least install grainger and 1gen bov. Then a cal and upgrade ic to fm supra or dual core. This is the last hurdle. I'm scheduled for the 11th so until then I won't put the go fast stuff in just to take it out for the test. ( too many things to do with out installing and uninstalling equipment. Well tomorrow I'll check the cam timing(if it isn't raining). Any bets? Chris
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Old 04-03-2005, 11:05 AM   #2
 
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I'm trying it out Im having the same problem (sorta) with cam timing. I had the head milled and the car idles at 1000 rpm's with the bigger valves ported head ect... I keep on messing with the timing and it started to get better and better just keep on messing with it you'll get it right
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Old 04-03-2005, 11:15 PM   #3
high idle  
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Well now I'm thinking that maybe the engine is not up to correct operating temp. At least for the smog ref. Normally the rampage runs just a couple of marks above the c on the temp gage. Sitting in stop and go traffic it climbs to mid way then the fan kicks in and drops back down. Temps here have been on the cool side lately. The other day the gage was at mid point and I pulled the cts and the idle did not increase. I'll be doing more research this week. I have cleaned the ais it seems to be working properly. I'm running a 180^ stat with the weep hole. Chris
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