Pontiac Bonneville SSEi (S/C) year 1992. (at Brazil)
Dear member friends:
Is it true that the 3.8L/SC engine, year 1992 has two coolant
temp sensor? ( One, under the MAP that send the message (volts) to PCM and another, under the air intake that send the message to the dash )
I´m running hot (220 F) with a bad gaz mileage. (14miles/gallon drive town)
I did new water pump, cleanned the system, 50% water/50% GM Ethilenoglycol, no leaks, new O2 sensor(Delphy), new EGR valve, EGR tubes with no leaks, new FPR, new AC R45TLS6 plugs gapped 1,52mm (0,060), new AC premiun wires, new MAF, TB cleanned, new fuel filter, new air filter, fuel pump checked with 48PSI, new PCV, BTW all the stuffs under the sky that I could here in Brasil was replace.
No CEL light.
Will be my Temp sensor?
Any tips will be welcome.
Malachias(Brazil)