The last 4 times i've started it 'cold' about 25* C outside, it's been hard to start and the CEL has come on, it's code 22, coolant temp sensor/circuit. Starting it 'warm' after this has no problems. Today before oil change It struggled to start took 5 tries. When it did, the engine warmed up but no change on the temp gauge. Disconnected the fan switch plug and they worked. Later after I changed the oil it started perfectly, temp gauge was perfect, fans kicked in, no CEL. Picking up a new efi water temp sensor tomorrow just incase. Thinking it might be the cold start injector water sensor? I think i'll know if it's hard to start in the morning If not the sensor, where do I check the wiring? Does it go straight to the ECU?
Subscribing to this... Have the same problems... Ive changed: Cold start injector MAF Full tune up Starter relay mod and a few other things Still having issues
could be cold start injector switch (brown plug on coolant neck) the csi water sensor/switch has pins STA and STJ, whcih both go to the ecu AND the csi itself) iirc
No problem today but got a new EFI water temp sensor putting it in tomorrow and changing the coolant for toyota red. For future reference: EFI water temp sensor - TCS024 $30 AU http://www.tridon.com.au/products/product.aspx?Code=tcs024&SG=8&S=35&G=483&P=2013&I=177 water temp gauge sensor - TTS006 $27 AU http://www.tridon.com.au/products/product.aspx?Code=tts006&SG=8&S=35&G=483&P=2012&I=914
Stilll no problem, Im sure it was crud on the sensor plug, got a nice spare now til the timing gets done....great stuff
