my girlfriend owns a 2000 echo. i made a custom intake(cold air intake/SRI) I cant seem to keep the car from dying. I will start the car up, then it will sputter out just a few seconds later. Im pretty handy with cars and i have a custom intake for my mazda with no probs. Does anyone have a custom or aftermarket intake on their echo that can help me out? Post pics if you have or can get them. Thanks. Here are pics of my intake. I built it to the way the stock was hooked up. The blueish tube is the vaccum hose near the firewall and black hose is goin to the crankcase.
if your echo piping is like my yaris, then the maf is expecting 2.25".......i did the same thing w/ an intake out of my old xrs....it was 2.5" diameter.....it ran but i got a CEL for system running lean.......so i just bought a proper yaris intake
you cant really ghetto-fab an intake where theres is a mass air flow sensor like you can when its just an intake air temp sensor....
youre also getting unmetered flow by have the PCV hose behind the MAF anyway, it needs to be in front of the MAF in the intake stream
__________________ 2000 'Alpine Silver' ECHO 4-dr; US Gen 1
--Weapon-R Dragon Intake System--DC Sports Header
--KYB GR-2 Shocks and Struts--Tein H-Tech Springs
--TRD by Hotchkis Strut Tie Bar--GReddy Rear Lower Arm Bar
I agree that the size of the pipe may be causing your problem. If you can get hold of a scan tool that will give you the MAF sensor reading, compare the stock intake reading and your intake reading. If there is a big difference between the two, then you have located your cause. The larger size of the intake pipe may have slowed down the speed of the air flow going by the MAF sensor, which tricked it into 'believing' that there is less air than what is actually going into the engine there by reducing the amount of fuel that is injected into the engine resulting in a lean condition.
I agree that the size of the pipe may be causing your problem. If you can get hold of a scan tool that will give you the MAF sensor reading, compare the stock intake reading and your intake reading. If there is a big difference between the two, then you have located your cause. The larger size of the intake pipe may have slowed down the speed of the air flow going by the MAF sensor, which tricked it into 'believing' that there is less air than what is actually going into the engine there by reducing the amount of fuel that is injected into the engine resulting in a lean condition.
The reason for the 'may' is because I am not exactly there looking at the car, and I can only guess by what I saw in the picts. If you haven't notice there is no clamp on the boot after the MAF, which may or may not have a leak; I just don't know. Readings from a scan tool can certainly clear that up; good MAF reading and still runs lean means there is a leak after the MAF or fuel system problem. Low MAF reading means it is sensing the wrong amount of air flow/volume, hence the wrong size pipe.
Long distance diagnoses may not always be correct, but merely suspected areas of causes if there are no real concerte facts to back them up.
The reason for the 'may' is because I am not exactly there looking at the car, and I can only guess by what I saw in the picts. If you haven't notice there is no clamp on the boot after the MAF, which may or may not have a leak; I just don't know. Readings from a scan tool can certainly clear that up; good MAF reading and still runs lean means there is a leak after the MAF or fuel system problem. Low MAF reading means it is sensing the wrong amount of air flow/volume, hence the wrong size pipe.
Long distance diagnoses may not always be correct, but merely suspected areas of causes if there are no real concerte facts to back them up.
N.E.O.
he says the intake piping is 3"
stock piping is 2.25"
its screwing up the maf readings.
how do i know? i did the same thing. i put the intake from my old xrs onto my yaris. it didnt stall, but i got a system running lean CEL......his is a full half inch larger....im not surprised it stalls...
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