Colonel: During the cold start the ECM is not using sensors to figure out the fuel air ratio, it is using programmed data. Once the engine warms up it will switch over to use the sensors. My Ford Windstar taught me that lesson. Some rubber grommets failed and leaked air into the intake manifold. It was alright while cold but as soon as the temperature rose the idle went up and down (loping) while the computer struggled to keep the engine alive with bad data from the MAF sensor.it's not throwing any codes but idles at excessive speeds and will surge when cold. I recently bought a wifi OBD-II module and DashCommand for my iPad, monitoring the fuel trims on cold startup doesn't seem to be out of whack
mr.clutch wrote:dannyboy, If your gasket has never been replaced you should replace it. I am from a family of 4 vibes with varying mileage. My 08 has 85,000 miles OEM gasket leaked in three cylinders. Younger brothers 05 has 130,000 miles OEM gasket leaked in three cylinders. Older brothers 08 has 100,000 miles flepro aftermarket replacement gasket no history on when it was replaced leaked on two cylinders. Moms 08 has 45,000 miles OEM gasket leaked in all four cylinders and was more brittle than the other three. You can try to spray cleaner all around if you want but with the way the intake sits on the engine I don't think you will be able too tell. I changed them all with no issues and it took aprox. 2 hrs. each including cleaning intake runners & valves along with completely washing the intake in soapy water. Just a added reason for changing the gasket MILEAGE for me jumped 2 miles a gallon. What ever you decide remember you can not over maintenance your car. GOOD LUCK Mike
Plastic and rubber degrade over time, not just from use.Nasmfell wrote:Kind of low mileage on a couple of your Vibes, to have the intake gasket needing to be replaced. Makes one wonder if Toyota did not "cheapen" out on some aspects of the 1ZZ
True, but does it not take a long time for this to happen?lannvouivre wrote:Plastic and rubber degrade over time, not just from use.Nasmfell wrote:Kind of low mileage on a couple of your Vibes, to have the intake gasket needing to be replaced. Makes one wonder if Toyota did not "cheapen" out on some aspects of the 1ZZ
No, especially with the unkind conditions it's exposed to hugging on the engine head.Nasmfell wrote:True, but does it not take a long time for this to happen?
Interesting note on the reflash, anyone know how much that runs? And does it get done at GM or Toyota?Salsa Guy wrote:Normally the 05+ didn't have issues with the gaskets. Also there is a TSB regarding P0133 in the AWD Vibe/Matrix not sure if it included the 06 or not. It requires an ECU reflash. A P0133 isn't considered a bad code and not normally associated with a leaky manifold gasket.
Check this out
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Yes it islannvouivre wrote:No, especially with the unkind conditions it's exposed to hugging on the engine head.Nasmfell wrote:True, but does it not take a long time for this to happen?
EDIT: And it's a 9-year old gasket. Isn't that a long time?
Lol for the most part, yes. Toyota just called and said they couldn't get the gasket because its a vibe so i called GM and they got it for 11.50.Raven wrote:$35.00 for the gasket? It should be around $5.00
Is stuff really that expensive on The Rock?
So the gasket came today from GM, its a black one by AC Delco, part# 88969024. I'm guessing its the same as the one that is currently on my vibe, the original one. What is this "orange" gasket? Is it better than the original one? If so, does anyone have a part # for it?ColonelPanic wrote: I have the new orange gasket ready to go on ours, it's not throwing any codes but idles at excessive speeds and will surge when cold. I recently bought a wifi OBD-II module and DashCommand for my iPad, monitoring the fuel trims on cold startup doesn't seem to be out of whack so I haven't bothered replacing it yet since I'm not 100% sure that is the problem.