My 1999 Toyota Sienna has a check engine light and a ABS light, when you go to move of it has no power for awhile then suddenly takes off, if i stop in a hill it will not move you will have to roll away down the hill and build speed to make it over, i change the oil & filter,fuel filter & cap, spark plugs, intake manifold and clean it.

SOURCE: engine stop

On models equipped with external coil, ensure spark occurs as follows:
Disconnect coil wire at distributor.
Hold end of coil wire approximately 1/2 inch from vehicle body.
Crank engine and check for spark to occur. On fuel injected models, to prevent fuel from being injected during testing, limit cranking to 1---2 seconds.
If spark does not occur, proceed to step 3.
On models equipped with internal coil, proceed as follows:
Disconnect spark plug wiring, then remove spark plugs.
Connect spark plug wiring to spark plugs.
Ground spark plugs, then while cranking engine, ensure spark jumps spark plug gap. On fuel injected models, to prevent fuel from being injected during testing, limit cranking to 1-2 seconds.
If spark does not occur, proceed to step 3.
Check ignition coil, igniter and distributor wiring connections. If connections are secure, proceed to step 4.
Check spark plug wiring resistance values. Refer to Spark Plug Wire Resistance Test for procedure.
Turn ignition switch ``On,'' then check for battery voltage at ignition coil positive (+) terminal. If battery voltage is not present, check wiring between ignition switch to ignition coil and igniter and repair as necessary.
Check resistance of ignition coil. Refer to Ignition Coil Test for procedure.
Check distributor pick-up coil(s) resistance and pick-up coil(s) air gap. Refer to Pick-up Coil Test for procedure.
On 3S-GE and 7M-GE engines, check IGt signal from ECU for approximately 1.0v. If approximately 1.0v is not present, check wiring between ECU, distributor and igniter and replace as necessary. If wiring is satisfactory, replace ECU.
On all models, if components tests performed in steps 3 through 8 were satisfactory and spark does not occur, replace igniter.

SOURCE: 1994 toyota corolla has a runs rough at idle and

I have a similar problem with one of my Toyota Corollas. It's a 95 model with the 1.8L engine (7A-FE, automatic). But unlike yours, it has plenty of power while running. Here's what it does. Occasionally the engine misses. Sometimes it will die. This is most likely to happen when you start the car and put it in reverse and start rolling without giving the engine time to adjust. I've been told by some customers that it will die sometimes when coming to a stop. But this has never happened when I drive it. I don't think it's a fuel issue because the car runs just fine when it's running.

Here's what I've tried so far:

1. Replaced spark plugs and wires.
2. Used gasoline additive fuel injector cleaner.
3. Checked air filter.
4. Checked vacuum hoses for leaks.
5. Replaced PCV valve and hoses.
6. Cleaned the air intake and throttle body with carburetor cleaner.

1. Check the throttle position sensor.
2. Check the MAF sensor.
3. Adjust the idle via the set screw.

SOURCE: miss fire but no lights on changed the plugs and

A lean fuel mixture will not yield poor fuel economy but a misfiring cylinder will.You have already replaced the coils and the plug leads to the cylinders in question so they should not be an issue.Do the codes still indicate a misfire on cyls. 2 & 3? If so have you looked at the plugs? Has the oil leak around the plugs been stopped? Are they oil fouled? Could the pooling oil around the plugs be shorting the spark discharge to ground?or Valve Cover gasket is leaking. That's why you see some motor oil in the sparkplug sleeve (tube). removed the spark plug and My suggestion is to remove the sparkplug in cylinder 2 & 3 or whichever ones that the scanner indicated as "misfiring". Take a look at the sparkplugs and see if there's any oil around it. If you see any traces of oil, that means your gasket is worned out and need to replace.Good Luck in getting your problem fixed. If you need any further help - I'll try to help you the best of my knowledge and skills. You can repost on this