Posted: Mon Feb 08, 2010 7:48 pm
There ya go, learn something new every day. All the research i did i could only find reference to the front sender.smaddock wrote:There are 2 coolant temp senders. There's one near the top radiator hose where it goes to the engine which is the one for the dash gauge, and there is one at the back of the head (prick to get to) which is for the ecu. The one for the ecu should be all plugged in with the engine loom and goes straight to the ecu plug.dillza_69 wrote:Yeah i looked into that but there is definitely only one coolant temp sender. I think from factory the dash gauge was supplied by the ecu, i have done research and without wiring diagram i cant be sure (too tight to buy manual just to get wiring diagram)chimpboy wrote:Not sure about that particular motor but some motors have a separate sender for the ECU as opposed to the one that goes to the gauge.dillza_69 wrote:Thanks Turbo shop i will check valve clearances. As for the coolant temp sender i have the original sender giving the input into the ecu as well as supplying the signal to the dash gauge. I wasn't sure if the dash gauge would interfere with the ecu signal
As for misfiring at idle, mine does this when at operating temp when on petrol, but doesn't do it on lpg, so I think my problem is actually dirty injectors. I don't think mine's anything else to do with fuel probs or maf as its been remapped with a piggyback ecu and the tuner said the fuel ratio's are all fine, but a dirty injector can cause misfiring while still showing good afr's. But thats another story...
As for your's, I really don't know. When I did my conversion I had all sorts of problems with it running rough and crap when I had the maf sensor stuck into a piece of intake hose, and even when i had a custom inlet tube made up with a custom mount for the maf sensor it was still a little rough. It only came completely good when I bought a stock 3rz air box and hacked the maf mount off and mounted this properly into my inlet track. Not sure how your maf is mounted but it looks like you've just drilled a hole in the rubber/plastic inlet tube and stuck it in... I could be wrongbut might be something to look at... With efi, one sensor not reading correctly can cause all sorts of crap!!
I have just had my injectors tested and they came back fine so its not injectors for me. As for the MAF, mine is custom mounted but it was mounted to the same depth and in the same diameter intake pipe, really the only difference between mine and factory is my intake is steel and factory is plastic.