I need some help with engine codes.
Here's what I've got
1990 SC
51
Engine coolant temperature sensor signal voltage is too high.
- which one is this? I've replaced the one that turns on the fan recently because the fan wouldn't turn on
54
Air charge temperature sensor signal voltage too high
- I replaced this one a few years ago the other one had broken.
56
Mass air flow sensor voltage signal too high
- I tried cleaning the MAF with a residue free electronics cleaner.
Here's what I've got
1990 SC
51
Engine coolant temperature sensor signal voltage is too high.
- which one is this? I've replaced the one that turns on the fan recently because the fan wouldn't turn on
54
Air charge temperature sensor signal voltage too high
- I replaced this one a few years ago the other one had broken.
56
Mass air flow sensor voltage signal too high
- I tried cleaning the MAF with a residue free electronics cleaner.