bogs at idle when first started and engine coolant temp sensor
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Joined: Nov 2002
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From: Twin Cities / Albany, MN/NY
bogs at idle when first started and engine coolant temp sensor
i put a d16z6 in my 89 dx using p28 ecu. When I start the car for the first time of the day or when I let it sit around for more than a couple hours it bogs heavily for 5-10 seconds. after that it runs like normal. I'm throwing an engine coolant temp code, does that cause the car to run rich?
also, i'm trying to clear up the coolant code, when i did the swap i extended the two wires that did go to a coolant temp sensor in the back of the block to the sensor on the thermostat housing. was this correct? Someone said I might have to put my old coolant temp sensor in the back of the z6 block (said there is a bolt covering the hole) and reconnect the sensor on the thermostat housing with the original engine harness spot. I haven't been able to try this yet because of rain, but any verification or other ideas would be much appreciated. thanks
also, i'm trying to clear up the coolant code, when i did the swap i extended the two wires that did go to a coolant temp sensor in the back of the block to the sensor on the thermostat housing. was this correct? Someone said I might have to put my old coolant temp sensor in the back of the z6 block (said there is a bolt covering the hole) and reconnect the sensor on the thermostat housing with the original engine harness spot. I haven't been able to try this yet because of rain, but any verification or other ideas would be much appreciated. thanks
Joined: May 2003
Posts: 62
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From: Gardner, KS, USA
Re: bogs at idle when first started and engine coolant temp sensor (Artful Dodger)
Having the same problem with my B16 swap. It took a bit of searching for me to find out exactly what the effects of a bad ECT are, but I found an answer at http://geocities.com/chipman_1...ml#TA.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">Code 6 - Coolant Temperature Sensor (ECT)
Helps determine the Pulse Width of the injectors at
start-up. When this sensor starts acting-up, the
engine will get hard to start, on "warm/hot starts".
The wax pellet inside the sensor has gotton lazy.
Sending bogus signals to the ECU, causing it to flood
the engine.
</TD></TR></TABLE>
I'm not sure about your wiring... I just read something earlier about the thermosensor (not coolant temp sensor... they're different things) being relocated from the back of the block to the thermostat on newer engines so it sounds like you did it right.
The engine coolant temp sensor is located near the distributor, down and to the right side of it on the head... has two wires, red/white and green/white I think... I know red and green are involved since I've been messing with it all day trying to clear up my code 6.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">Code 6 - Coolant Temperature Sensor (ECT)
Helps determine the Pulse Width of the injectors at
start-up. When this sensor starts acting-up, the
engine will get hard to start, on "warm/hot starts".
The wax pellet inside the sensor has gotton lazy.
Sending bogus signals to the ECU, causing it to flood
the engine.
</TD></TR></TABLE>
I'm not sure about your wiring... I just read something earlier about the thermosensor (not coolant temp sensor... they're different things) being relocated from the back of the block to the thermostat on newer engines so it sounds like you did it right.
The engine coolant temp sensor is located near the distributor, down and to the right side of it on the head... has two wires, red/white and green/white I think... I know red and green are involved since I've been messing with it all day trying to clear up my code 6.
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