1998 Nissan Altima Q&A
1998 Nissan Altima Question: drivability question
i have an intermitent short /mis that seams to happen more often if most acessories are on . its happenedat all speeds but mostly on hiway.ive replaced the altinator an fuel pump.ive checked the mass air flow sensor by tap test and by unplugging it. the egr valve by unpluging it when conditions came up . no codes show - brownduck
Some intermittent problems are very hard to find. I have ended up "teeing" in a fuel pressure gauge and taping it to the windscreen of the car and then driving the car with an hand held oscilloscope on the seat of the car to look at injector pattern, coil patterns, mass air flow and O2 sensor patterns when the problem occurs. Start with the engine running wiggling all the wires in the engine compartment and see if moving any particular harness makes the engine run poorly. I can't remember if it was your year range but some Sentra's used to have a bad ground wire that would frey at the air flow meter harness putting an auxiliary ground made the car run like a champ. - patrick mannion
The ground inside mass air flow (MAF) sensor can corrode and possibly cause drivability problems. The corrosion is enough to affect the sensor data but not enough to create a trouble code. Diagnosi...
About 6 weeks ago my car started to have little jerky movements while I was driving and notice the indicator of rpm would go slightly up and down. Then with time, the jerky movements became stronge...
My car has a blown head gasket, bad thermostat, bad radiator and it over heats. It's drivable but only short distances. like 30 mins. Im a college student with no money. What should I do?