Hey guys, haven't been in here in awhile! So much school and work, regardless, would an oil pan change be easy for me to do in the driveway or send her in to get it done. I noticed there was a nut that seemed almost impossible to reach. So just let me know fellas!

 

Yeah if you have the right tools its not too bad I did mine at the shop so I could stand under it much easier Yes the bolts by the trans can be difficult to reach and yes be ready for heads snapping off if its really rusted. You can do in driveway but if it looks like it will fight you do it at the shop not sure what they would charge. Dont forget about the oil pickup tube when your prying it of either.

 

i did mine in a garage on jack stands, i don't recall having any issues at all...the bolts in question weren't like retarded, like the power steering pulley, but you might need a u-joint and an extension...

 

Okay well heres a bit of a change, so I replaced the oil switch Since it was leaking oil, and the oil pan is being changed tomorrow. But today after passing a car, I went wot redline ( first time in awhile) and at the redline my check engine light came on. I didn't notice a thing different or a thing wrong. The code is P1020. AFR is off. Would the new sensor cause this if it's faulty? And if not, what can I do to narrow the search. I will be searching online as well for answers. Cheers!

Update: I searched the code and it means tps sensor is faulty. Did this guy give me the wrong code? Because he read the AFR issue out load when it showed
Update again: he's telling me that was the code for sure that came up.

 

there is no P0120...are you sure it's not P1020, which is a fault with the MIVEC system, which is directly related to the oil pressure switch on the head.

did you replace the one on the head, or the one on the back of the block?

 

say what? im pretty sure there have been plenty of people posting up about this code in the past...

 

it's not listed in the manual, i just googled it and it is a valid DTC, but it's not listed for the 4G69 for a toubleshooting procedure...i have another full DTC chart in PDF somewhere, but no procedure for it. it's hard to troubleshoot if you don't know if it's a low/high input, or performance malfunction...maybe it's just the sensor is ****ed...

4G69
P0117* Engine coolant temperature circuit low input
P0118* Engine coolant temperature circuit high input
P0122* Throttle position sensor (main) circuit low input
P0123* Throttle position sensor (main) circuit high input

4G94
P0117* Engine coolant temperature circuit low input
P0118* Engine coolant temperature circuit high input
P0121* Throttle position sensor circuit range/performance problem
P0122* Throttle position sensor circuit low input
P0123* Throttle position sensor circuit high input

 

It would make sense, I changed the one above the oil pan. And it happened when I was at wot, makes sense for mivec... Hm faulty oil pressure switch?

Edit: could it be maybe because it is a 4694 oil pressure switch? I'm not saying it is, but maybe the mechanic ordered a base lancer switch and installed it.

 

there's only 2 sensors available for our engine...pressure light(ours) or pressure gauge kind(evo)...(least thats what i encountered when i replaced mine)

as for the code i just checked mitchell's online and theres no listing of p0120 for the 4g69...
you might wanna triple check....
i'd say go somewhere else and have them scan the car...see what they say...

 

Well I'm going to shop today in an hour or so, getting the pan changed , and demand a switch change, and make sure it's for a 4G69, he's not going to trust a 19 year old kid telling him his job. But whatever

Edit: btw thanks a bunch guys! Always so helpful

Edit 2;: that sounded sarcastic, but it wasn't lol

 

well the pressure switch on the back of the block is just for the idiot oil light, the one on the head has to do with MIVEC...so the one you replaced should not affect MIVEC...

 

Hmm, well I'm back, Installed the oil pan, left the switch in. It might be because I had such low oil, hitting mivec caused the check engine? She has a fresh 5 qts and I spiritedly drove home, no light turned on. Problem....solved?

 

probably that...if you have oil pressure below the threshold for more than 2 seconds above 4000rpm, MIVEC will not engage/disengage and a CEL is thrown...and again that is P1020...

 

****ing the best cranswick. Never fail me lol


Edit: answer me this though friend, how the hell is my clutch not slipping anymore....it just "fixed" itself. I did fifth gear hill test. No slippage....after a good month of it slipping. Only thought I have is that oil somehow leaked from my pan into something that made the clutch slip....no clue.. Although I'm not complaining!

 

I got that same code when I change my oil sensor too. Went away when I unplugged it, so I just left it unplugged. (I have aftermarket OP gauge)