The map sensor and the MAF sensor are one in the same. But this won't cause just a 1/2 misfire. It would all cylinders misfiring. Look for broken vacuum lines by those cylinders first. The map and O2 codes can be caused by the 1/2 misfire. Which could be a bad vacuum line. Some how you are getting excessive air into the engine.
Hi Monica , is you check engine light on ? Could be a mass air flow sensor ! Need to have it hooked up to a good scan tool to read computer an engine sensor data , to see what is out of specification. An maybe hook up a scope How to check your Mass Air Flow sensor MAF sensor
We already tried that not it it was reading codes for map and 02 and misfire 1/2 then I change the plugs and boots and and no light cuts on when it's not doing it but when it gets warm it show a light but no code when I put it on the Machine I tried taking the batt cables off for two min and it worked
We already tried that not it it was reading codes for map and 02 and misfire 1/2 then I change the plugs and boots and and no light cuts on when it's not doing it but when it gets warm it show a light but no code when I put it on the Machine I tried taking the batt cables off for two min and it worked but after a while starts again
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Hello Monica.,Take it to your local garage and ask them to check out the onboard computer.
You can do it yourself often. Just disconnect your battery for 2 mins and then reconnect.. If the same.. the garage.,
good luck
Ray
We did that and it did fine for about a he then started back
well Monica then take it to a garage like I said. It doesn't have to be a main dealer as most garages now have the equipment to connect to the car and tell exactly the problem.. Messing on by yourself could lead to more problems and more expense in the long run. Good luck.
I took it to one they didn't know what it was cause it was not reading no codes
Monica,
Monica,
Sorry.. LOL Take it to a good garage with the correct gear to test it and get a free estimate on fixing it. Tell him you got to have a word with hubby first...Then come tell us what he said and one of us (there's a load of folk more up to date here from what I see then me).. We'll get there Love x
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SOURCE: 2002 sequioa sudden stall
Often when the battery is disconnected or replaced the computer will lose it's learned idle settings. You could try letting the engine idle in park until the engine temperature comes up to normal and leave it like that for a few minutes, then put the Air con on and let it idle again for a few minutes, then switch the air con off and put it into drive. If it does not stall, let it idle in drive for 2 minutes or so, and then do the same with the Air con on. This should relearn the base idle settings and stop it from stalling on you. Before you carry out this procedure you should make sure that when you replaced the battery you didn't remove any other plugs or knocked anything that may be causing the fault. If you try this procedure and it still stall when you select drive, you will need to get a Mechanic to check the vehicle over.
Hope this helps,
Mark.
SOURCE: My 1989 Mercedes Benz 300E
The inside of the ignition dealer (Delco) must be thoroughly cleaned and all metal parts passed with fine metal wool. Sparkplugs must also be cleaned or renewed. The air inlet-valve is very sensitive. The cylinder and the disc must be carefully cleaned with light metal wool and contact cleaner. The fault is due to the disc remaining stuck in the cylinder, so no idle function and malfunction of the auto-choke system. If this solution does not work, then the vacuum pressure is defective.Hint from a German Mercedes specialist.
SOURCE: 95 Ciera Hesitates & stalls when warm
Change the IAC the idle air control. You may be able to clean it and put it back on.
SOURCE: Car hesitates/stalls when engine is warm and car starts to move.
Sounds like a bad motor mount, pop the hood and see if the motor shakes or moves rapidly when u put it in gear holding down the brake.
SOURCE: 1998 Rodeo TF Series 2WD 5-speed manual
check throttle positioning sensor or mass air flow (maf) sensor
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