Poor cold start, EDM 4G63
Oct 1, 2013, 07:16 PM
#1
Poor cold start, EDM 4G63
My IV has a USDM 260 ecu running an EDM Evo 8 engine. The engine started great the first try, even though it had 2 CEL's for the missing EGR. Once I disabled the EGR in the FAA and FCC periphery, the engine began to have trouble on cold starts.
The engine will maybe fire on 2 cylinders and then just continue cranking.
If I stop cranking exactly when it fires those couple times I can get it to start but it stumbles for 5-10 seconds until RPM raises to idle.
If I let it crank past those 2 little sparks, stop, and then continue cranking it starts perfect without turning 1 revolution; like it had compression, just didn't give fuel or spark.
To summarize: It starts fine but only if I turn the key twice.
The engine will maybe fire on 2 cylinders and then just continue cranking.
If I stop cranking exactly when it fires those couple times I can get it to start but it stumbles for 5-10 seconds until RPM raises to idle.
If I let it crank past those 2 little sparks, stop, and then continue cranking it starts perfect without turning 1 revolution; like it had compression, just didn't give fuel or spark.
To summarize: It starts fine but only if I turn the key twice.
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