I have 1999 Toyota Solara SLE V6 - i have an ongoing issue with the check engine light, randomly when traveling at more then 60mph the front end will shake, the check engine light comes on and it smells like exhaust and my mileage gets poor, after about a 100 miles it will reset, the light goes off and the smell of exhaust stops and mileage returns to normal, this has happened at least 20 times but now after 1000miles it has not reset...any suggestions

Dar

• 2007 Answers
• Posted on May 13, 2009

SOURCE: 1998 toyota corolla shakes before 2 rpm, check engine lights up

Not sure what is causing it, but it sounds like you're running on 3 cyllinders. Check plugs, wires, timing . timing belt may have jumped, bad injector, low fuel pressure.

SOURCE: check engine light on my 1999 Toyota Solara

You need to have the codes read to see what caused it, Autozone will read the codes for free.

SOURCE: 1999 Toyota Solara V6 SLE has an engine misfire,

running lean bank one; suggest a bad 02 sensor on bank one,check engine light on? suppose so, or you would'nt have codes.may be a bad coil pack on bank one. it does'nt run without a backfire right? your best thing to do is this. check engine fire to plugs that supply fire to bank one,it may have a red fire to plugs on bank one side, but you need blue fire to plugs on bank one side.[the best spark to plugs will always be blue] you may only need to replace part of the engine coil pack, they will have numbers on them[coil pack] and which cylinders that they supply spark to. if i'm not mistaken, you will be looking from front of car, look on passenger side of motor for a bad spark plug, or may even be a worn spark plug wire,inspect your spark plug wires for a worn place where the wire is exposed to ground the spark from the spark plug. pull the spark plug out and check it for carbon build up also. for carbon build up, it will be covered with hard black substance. recommend if you do replace plugs, nepindenso, no ac plugs[cheap] no ac delso,cheap. the better the plug, the better the car runs with great mileage. hope this helps,merry christmas, and as always,if you need further assistance,please repost your question and an expert will be happy to assist!

SOURCE: Ive been having issues with

That code is P0171= system too lean (bank 1). The computer is reading a lean condition and is trying to richen up the mixture but is unable to fully compensate for the condition. That is why the engine is running so rich and you are losing mileage. You should be looking for an air leak in the intake system after the MAF, a vacuum leak into the intake manifold, or an exhaust leak at the exhaust manifold gasket or some where above the oxygen sensor. The O2 sensor is seeing excess oxygen that is unaccounted for by the MAF.

SOURCE: 1999 Toyota Solara SLE -

You need to have your computer reset.
There are a couple way to do this:
1. (best) go to an auto parts dealer (call them first) that can do a diagonstics test - they can reset the codes for this.
2. Disconnect the battery (positive) and leave off for about thirty seconds. Reconnect, and start the car - drive, hit 55 mph and see if it does it again. If so, drive for a few days as these in most cases eventually clear themselves, as the computer has to "re-adjust" to the new parts (settings).
Please let me know if you need further assistance.
carsandcomps,
Guru, Premium Expert, Phone Support, Live Chat @ Fixya.com