so i am done building my motor and have eliminated a few stock senders, water temp, oil level , oil pressure and such, is the ecu gonna flip because those sensors are not reading anything? i talked to a tech that works with me and he said they would be ok, the oil pressure is the big one because i have a aftermarket oil pressure and need to use the other spot in the tee for a oil feed for the turbo, i know the oil level will be ok because i have had it for a long time like that, i have no cluster just a digital dash. also sould i do the return line to the oil level sender or is the oil dipstick more the route to go, 95 2200 ohv motor also. as all of my guages require aftermarket senders and i beleive that these sensors just trigger idiot lights that i do not have.
thanks
jason
Well, the stock oil pressure sensor also works as a fuel pump shut off when it sees no oil pressure...
I think that on the back, upper passenger side of the block there are Two bungs that go into the oil passage. I believe you can use one of these for oil pressure. Someone correct me if I'm wrong
you.. eliminated them...?
anything to do with coolant temperature and air temperature or pressure are uh, pretty important on the OBD2 cars.
how're you tuning this thing?
^^^ I'm thinking hes still running the stock ecu....or he wouldnt be asking that question.
the tech you talked to doesnt know what he's talking about. Is this a jiffy lube?
Like PJ said....those sensors give important data to the ecu. The car will probably go into limp mode
Im guessing you are putting an engine from an obd 1 car into an obd 2 project......you are probably going to be forced to run a stand alone.
no its obd 1.5 actually, the tech i talked to was a driveability tech for ford for a number of years, i have a safc and aeromotivr frp with a innovate wideband and pyrometer, if i have to do a megasquirt after that i will but trying to stay away fom that for now. yes stock ecu.
jason
Oil pressure will not be a issue. The ECU does not use that info for anything but the light on the cluster. Coolant temp will be a problem. The ECU will not know what the engine temp is to allow the car to do different things like : lower idle on warm up, go from open to closed loop. Also AFR is based off of engine temp as well. With the stock ECU it is going to run like crap. If you can get the stock engine temp sensor put in somewhere it will change that, or go to a stand alone, but you are still going to need engine temp with them.
FU Tuning
Quote:
i have a safc
unless the 95 ecu is speed density (it could be, but I doubt it) or MAF, that won't work
yes, I think one of the easiest options would be to correctly integrate all the factory sensors you can, hopefully you can get all of them operational, then it is a non-issue.
water temp is the important one, and if your car is set up with the oil level.....it probably wont start without that hooked up.
The oil level could be easily bypassed.....but coolant temp is 100% necessary.
the safc is working already and the oil level has been disconnected for 2 years and the car is fine i will put the water temp back in, the car is speed density too.
jason
jason norwood wrote:no its obd 1.5 actually, yes stock ecu.
jason
No, its not. Rudimentary 95-96 OBD-2 ECM (its ECM OR PCM people, ECU is a import thing!) yes, but still OBD-2. The Prom inside is only for Knock function.
With out the ECM getting the readings from the sensors, it wound enter closed loop, even worse, it may run in limp single fire mode (all injectors at once.)
Oil level, don't need, just cheek it. oil pressure Need, coolant temp need. and 02, need.
And Pj, the OBD1 95's are speed density with resolution to 7200.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
