so I've searched for hrs and read many posts about cars going into limp mode.. long story short car is 2002 sentra ser spec v. Already replaced full tb and alternator. My research shows me its probably wiring to ecu. Have not tried accel pedal replace. Or maf. Many people take it to shops and replace those three minus maf.... and ecu but still have problems.... my question is where is a link to service manuals and what wires going into ecu are for throttle body. My ecu looks very clean and I don't see any corrosion on pins or white connector? Is the problem usually at the ecu? Also have hear of ecu relay but usually people report noises and clicking problems with that not in my case... any info on troubleshooting wiring would help. Started random one day... car just looses power and won't rev up fast. Intermittent once it started... replace the TB and everything seemed fine. For a few days then came back more frequent than last time. Replaced alt. Still happened intermittently. Messed with plug to tb and tried checking voltage with key on there.. red wire shows 6.4v!? No others show more than.5 v. Shouldn't be more than 5 at full pedal correct? It now happens every time at start up which leads me to think it is wiring at plug. Any further help would be appreciated cannot ever see. To find what people did specifically to solve the problem with wiring. Thanks guys ive had the car 4 months and loved it, put a bit into it to improve performance.but this is pissing me off lol. Please help me get this baby back on the streets.