Engine Install 98-99 ECU

Install 98-99 ECU

I'm considering buying a modified 98-99 ECU. I'd like to hear some opinions before buying it.

The ECU is a modified OEM ECU. It raises the redline to 6500 RPM and raises the powerband to a broader stance. It also removes the governer. I currently have an intake and exhaust installed. Will installing this ECU make a big difference? Do you think it's worth purchasing?

Also, how easy is it to replace my factory ECU with this one? Where is the current ECU located, and is it simply plug and play? Will replacing the ECU affect anything else, i.e. the odometer reading?

Thanks for your help.

i'm not really sure of the power gains (probably not much) but the ECU is located on the floor between the driver and passenger seat...basically directly under the stereo. all you have to do is take out the storage compartment (and factory CD play if you've got one) and you'll see it.

btw, where are you getting this ECU from?

I'm actually thinking about buying the ECU from someone on this board for $180, plus shipping. If there's not much difference in performance, I might not buy it though.

Is it easy to remove the storage compartment in the Corolla? Also, is removing and replacing the ECU simply plug and play, or is there complex wiring involved?

removing the storage compartment is simply prying off the trim piece that goes around the a/c controls, the storage compartment and down to the ash tray and then removing 4 screws from around the compartment...you'd have to talk to the seller about the "plug and play" issue

If you are buying a replacement ECU, then it is in fact plug and play. All you would have to do is to uninstall the other one, install your new one, with your battery unplugged of coarse, and then start your car up. BTW I have learned start your car, and make sure that everything is running and everything before you put your consol back together, of you might find yourself taking it apart again and again. I was going to buy that ECU, but then decided not because I'm want to put that $200 elsewhere....I think that it's a good deal...maybe if you don't use it you could sit on it until someone asks for it

Will changing the ECU affect anything else in my car, besides the powerband and redline? Do you think broadening the powerband is a useful mod for a 1999 corolla? I already have a Weapon R Secret intake and a TRD muffler for mods. Thanks for your input.

ITS A SECRET INTAKE?!

if you really wanted to get the most out of your intake-header-exhaust mods, you would need to tune your ecu after getting everything installed.

No, it's not a secret, though I don't have stickers all over my car proclaiming my mods. It's actually called the Weapon R Secret intake; you can read up about it on www.weapon-r.com.

Do you know who could tune my ECU? Or do you think getting a piggyback ECU would be more effective?