Toyota altis 02 hard start and erratic rpm

**Fauniramonito** · July 29th, 2012 12:37 PM

Help have a toyota altis manual 02 hard starting, erratic rpm pls give list of possible parts to replace thank you

**basti08** · July 29th, 2012 01:21 PM

Have your throttle body (i think) cleaned. As always, one of the culprit in erratic idlings.

**Fauniramonito** · July 29th, 2012 01:47 PM

Originally Posted by basti08

Have your throttle body (i think) cleaned. As always, one of the culprit in erratic idlings.

Bro done that plus tune up spark plugs changed fuel filter changed still the same

**sirkosero** · August 2nd, 2012 12:12 AM

how about the MAF sensor? have you tried cleaning it?

**sirkosero** · August 2nd, 2012 12:25 AM

how about the MAF sensor? have you tried cleaning it?

**vinj** · August 2nd, 2012 09:41 AM

Perhaps a engine scan and compression test would help first and foremost. Then from there, have your engine checked for any signs of having sludge problems (common on the ZZ engine).

Cleaning the MAF (Mass Air Flow) sensor can be done by doing the following:
1. Carefully remove the MAF sensor part from the airbox housing (It's the sensor right after the air cleaner, removable with a screw driver).
2. With some electric contact cleaner, spray generous amounts into the MAF sensor. You have to be careful not to touch the sensor hot wire and it's best to spray from a short distance and not directly.
3. Let the sensor dry for a few minutes
4. Re install, plug the sensor wire and start the car.

**Fauniramonito** · August 3rd, 2012 12:20 AM

Originally Posted by sirkosero

how about the MAF sensor? have you tried cleaning it?

Not yet bro i will try to do that thanks

**Fauniramonito** · August 3rd, 2012 12:22 AM

Originally Posted by vinj

Perhaps a engine scan and compression test would help first and foremost. Then from there, have your engine checked for any signs of having sludge problems (common on the ZZ engine).

Cleaning the MAF (Mass Air Flow) sensor can be done by doing the following:
1. Carefully remove the MAF sensor part from the airbox housing (It's the sensor right after the air cleaner, removable with a screw driver).
2. With some electric contact cleaner, spray generous amounts into the MAF sensor. You have to be careful not to touch the sensor hot wire and it's best to spray from a short distance and not directly.
3. Let the sensor dry for a few minutes
4. Re install, plug the sensor wire and start the car.

Okey thanks will try that.

**b16sir_stock** · December 10th, 2012 12:42 PM

almost same problem as my '02 1.6E matic... mine is happening on cold start.. almost take twice to start the engine and idling is erratic for a few minutes. but when it is warm then no problem to restart and idling is smooth.. casa replaced sparkplugs, change oil and fuel filter.. will map cleaning be the solution?
any other problems to check?