jerryparks

iTrader: (1)

Any ideas what I need to check to solve a missing problem? I've changed the wires and plugs. Replaced one knock sensor and installed a new fuel filter.. Also checked the exhaust system for
blockages. Help!

cobalt91

Caps and rotors can cause a miss fire. Is it showing any diagnostic codes?

Bprakash

I still have this problem after changing filter, caps and rotors, plugs and wires and ignition coils. No codes. Next I will work on injectors.

timmy0tool

iTrader: (7)

does it misfire at idle or under acceleration? have you addressed your ECU capacitors yet?

cobalt91

Don't throw parts at it. Find the problem and fix it. Does it change if the coils are disconnected? Can you hear any vacuum leaks? Take your time and check every thing before you buy parts.

jerryparks

iTrader: (1)

It idles OK, miss only occurs under excleration. My car repairman thinks it could be the timing belt. I put some high test gas in it today and it did not help.

Bprakash

I miss at idle and at high speed. I will fix an injector next week and hope to solve this problem.

dicer

Its funny how everyone likes to just start tossing parts at a problem. If you don't know how to properly trouble shoot, it maybe cheaper to find someone that does. The very first thing to do is look at a service manual. Either go to a dealer and ask to see it. Or go online to the Toyota site and down load it. Follow the trouble shooting chart in it. A constant miss does not always have to be caused by electrical or fuel supply. There are mechanical conditions that can cause it.

And wow a knock sensor? I hope you changed, overhauled, got new, did something with the starter when you did that.

jerryparks

iTrader: (1)

Yeh, replaced starter about six months ago. Its possible I should have replaced the other knock sensor as well. The one I replaced had some broken parts on it. The other one seemed OK, so I left ot alone.

brybo86

You can get to the knock sensor in about an hour

The starter is what takes another 6 hrs

python

iTrader: (4)

absolutely not true...cant believe some of the stuff im reading. listen to dicer here and stop with the crap advice and throwing parts at these cars gets expensive.

sha4000

iTrader: (1)

What did he say that was not true? He did not give advice on how to diagnose or fix the current problem. he just said it takes about and hour to change a knock sensor but the starter takes much longer.

python

iTrader: (4)

i was under the impression the intake had to be removed...upon further research,some have done it without doing so..my bad

dicer

It looks close to impossible to do with out taking all the plenum and intake out of the way. Its easier to remove the whole intake than to deal with removing fuel rails and all that as I'm sure that fuel rails and throttle body etc has to be removed to get to them. Then there is releasing the connectors on them and getting a tool in there, if it can be done I bet its very tight.

sha4000

iTrader: (1)

The intake does need to be removed but that's the easy part to a starter job IMO.