Micro Image Intake Manifold thread - Toyota Yaris Forums

4/20 NEVER FORGET · 02-15-2013, 10:54 PM

Well, it's in the car

I installed it earlier today with a 1ZZ throttle body. I was able to re-use my K&N typhoon intake but I had to buy a new coupler that doesn't reduce for the connection from the intake to the new throttle body. I had to buy a new coolant line to run to the throttle body because the lines are at a different angle from the 1NZ throttle body.

The install of the manifold itself was very easy. I also installed a Golden Eagle thermal gasket at the same time. I had to take off the hood latch mechanism to make it easier to slide the manifold into position easier, just an FYI.

As for the throttle body, based on what I read on here, I did not do a chip swap. My part number is ending in 030. After driving it around for a couple hours tonight, I think I am going to have to do a chip swap. On initial start up the idle would not stabilize, it would climb in RPMs then drop quickly, then climb and drop over and over until shut off. I remember tooter saying to back the screw out a turn so I did so and the idle stabilized but was still very high. After backing it out further I was able to get the idle to stabilize.

I took the car out for a drive. The change is noticeable. I normally drive the car in pretty low RPM range (I don't have a tach installed) and the power down low didn't change much. Once it starts to climb in revs, probably in the 3k RPM range, the car pulls stronger than before. 3rd gear around 45-50 mph and up is a LOT of fun. I'm quite interested to get this thing on a dyno once I get a bung for a wide-band installed into my exhaust.

Now, I need some advice on what to do about the throttle body. The car threw a check engine light each time I reset the ECU today, and I went and got it scanned at a autozone:

My guess is I need to do a chip swap. The car doesn't drive perfect. When I am coasting off of the throttle, say at 30mph (or any mph, doesn't matter), it doesn't matter if I barely touch the throttle or hammer the throttle, the car has a tiny "hiccup" feeling, as if the throttle was partly open then it closed and then opened. It's hard to describe. Also, when I am at partial throttle and I let off the throttle, it hangs for a second or two before closing and starting to decelerate. Is that normal? I know the car did it before, but it is far more pronounced now.

I also had some problems with high idle and idle hang, but I found that adjusting the throttle screw to a higher rpm idle has fixed it. I'm idling pretty high right now, probably around 1000-1200 rpm, but I haven't gotten a check engine light since I adjusted it this way (maybe 10 miles worth of driving where it would happen immediately before) so I think I am just going to leave it for now.

What do you guys think? I thought I had the right throttle body part number, but I'm thinking a chip swap is in my future.

As for the manifold, wow guys, it's a superb part. My friends who are all Honda guys were extremely impressed by the fit and build. The engine looks wonderful with it on there. If you're on the fence about getting one, it's a really well designed and built part. I can't wait to get this car to a dyno.

Sorry if my grammar sucks, I've been drinking.

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02-15-2013, 10:54 PM	#11
4/20 NEVER FORGET Drives: 2008 Yaris HB MT Join Date: Jan 2009 Location: Portland, OR Posts: 100	Well, it's in the car I installed it earlier today with a 1ZZ throttle body. I was able to re-use my K&N typhoon intake but I had to buy a new coupler that doesn't reduce for the connection from the intake to the new throttle body. I had to buy a new coolant line to run to the throttle body because the lines are at a different angle from the 1NZ throttle body. The install of the manifold itself was very easy. I also installed a Golden Eagle thermal gasket at the same time. I had to take off the hood latch mechanism to make it easier to slide the manifold into position easier, just an FYI. As for the throttle body, based on what I read on here, I did not do a chip swap. My part number is ending in 030. After driving it around for a couple hours tonight, I think I am going to have to do a chip swap. On initial start up the idle would not stabilize, it would climb in RPMs then drop quickly, then climb and drop over and over until shut off. I remember tooter saying to back the screw out a turn so I did so and the idle stabilized but was still very high. After backing it out further I was able to get the idle to stabilize. I took the car out for a drive. The change is noticeable. I normally drive the car in pretty low RPM range (I don't have a tach installed) and the power down low didn't change much. Once it starts to climb in revs, probably in the 3k RPM range, the car pulls stronger than before. 3rd gear around 45-50 mph and up is a LOT of fun. I'm quite interested to get this thing on a dyno once I get a bung for a wide-band installed into my exhaust. Now, I need some advice on what to do about the throttle body. The car threw a check engine light each time I reset the ECU today, and I went and got it scanned at a autozone: My guess is I need to do a chip swap. The car doesn't drive perfect. When I am coasting off of the throttle, say at 30mph (or any mph, doesn't matter), it doesn't matter if I barely touch the throttle or hammer the throttle, the car has a tiny "hiccup" feeling, as if the throttle was partly open then it closed and then opened. It's hard to describe. Also, when I am at partial throttle and I let off the throttle, it hangs for a second or two before closing and starting to decelerate. Is that normal? I know the car did it before, but it is far more pronounced now. I also had some problems with high idle and idle hang, but I found that adjusting the throttle screw to a higher rpm idle has fixed it. I'm idling pretty high right now, probably around 1000-1200 rpm, but I haven't gotten a check engine light since I adjusted it this way (maybe 10 miles worth of driving where it would happen immediately before) so I think I am just going to leave it for now. What do you guys think? I thought I had the right throttle body part number, but I'm thinking a chip swap is in my future. As for the manifold, wow guys, it's a superb part. My friends who are all Honda guys were extremely impressed by the fit and build. The engine looks wonderful with it on there. If you're on the fence about getting one, it's a really well designed and built part. I can't wait to get this car to a dyno. Sorry if my grammar sucks, I've been drinking.