I have this code! I own a Nissan Altima 2003 3.5, It sruggles with acceleration. When i turn the car ON it has a rough start and idles high. Next, I proceed with my day and drive it around but its very hesitant. I bought a new MAF and when I replaced it, my car did not want to turn on? So i put in the old one in and it turned on? I was mad so now im thinking it can be something electrical? Note i have P0102 code and P1800 i have replaced both of them and check engine light is still on?
Did you check for an intake leak?
P1800 is for a VIAS control solenoid valve, check to see if there are no broken or loose hoses.
The valve might be bad
If there are no leaks you should disconnect the battery to reset the ECU.
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