I have an injector test set you could borrow, but you would need a way to put a fuel pressure gauge on the system somewhere to use it. I don't recall Toyota putting a pressure test port anywhere on the system but I'm not a Toyota FI expert.
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replaced injectors and ff, now running rough
- Thread starter nuclearlemon
- Start date
DaveInDenver
Rising Sun Ham Guru
On the 22R-E I've heard of people tapping the front plug of the fuel rail and installing a schrader valve for testing.
When I was collecting parts for my 2FE I think I used a Chevy Fuel rail to pressure test my Toyota injectors, I probably still have the test rail buried somewhere in the garage. The Chevy rails have the test port, IIRC it is just a 3/16 flare fitting with a schrader valve installed.
nuclearlemon
Hard Core 4+
testing the wires will be the first thing. i'll start by firing it up and jiggling the wires at the firewall, them proceed to trying to check the plug connections before i tear it all apart. hoping maybe a pin got pushed back in the connector or something. i'm hearing now, however that this is not an uncommon problem. a friend back east had one that bench tested good twice and was still bad, also crash said he talked to some experts who said they almost never do injectors for this reason 
wish i'd known that ahead of time.
wish i'd known that ahead of time.
DaveInDenver
Rising Sun Ham Guru
What do you mean 'never do injectors'? I had my set done at Witchhunter during the rebuild and didn't seem to hurt anything. Can't say if helped either because along with serviced injectors I changed the short block, head, cam, a bunch of sensors...
You'll want a tool called a noid light to test for the control signal at the injector connector. I also have a bunch of 3FE injectors that are cleaned and flow tested if you do find a bad one or two. I collected 3 sets of them back when I was collecting parts for the 2FE and many of them were hopelessly clogged. The ones that still flow at least a little can be cleaned to give a good spray pattern again.
Rzeppa
Rising Sun Member
Schrader Valve
Yoiks!
Most Schrader valves are only designed for air or water service. I would not trust any old cheap elastomer seal in any old Schrader valve to hold up under constant exposure to aeromatic hydrocarbons (such as gasoline)!
Yoiks!
Most Schrader valves are only designed for air or water service. I would not trust any old cheap elastomer seal in any old Schrader valve to hold up under constant exposure to aeromatic hydrocarbons (such as gasoline)!
rover67
Rising Sun Member
Yoiks!
I don't know if the valves themselves have different seals on them but i've seen them all over fuel injected cars of older vintages..
Fuel systems and refrigeration systems have been using schrader valves with viton or nitrile O-rings for ages.
Squishy!
Rising Sun Member
Any luck Ige?
nuclearlemon
Hard Core 4+
got the no 4 issue resolved, still have an issue with no one and today i threw a p0402 on the way in...no time till fri to look at it tho.
Squishy!
Rising Sun Member
P0402 is excessive EGR flow. Maybe a stuck open EGR valve. What was wrong with the p0304?
nuclearlemon
Hard Core 4+
no clue. i'm guessing something in the plug.
nuclearlemon
Hard Core 4+
finally got a chance to swap the #1 injector and it appears to be fine now, so the new injector appears to have been the problem. i'll run it tomorrow.
for future reference, you can swap the number one injector without pulling the intake. it's not pleasant, but it can be done.
i did lose one of the lower throttle body bolts and of course, it's longer than anything i've got. so i'll have to try to find something that will work on monday when i go to work.
for future reference, you can swap the number one injector without pulling the intake. it's not pleasant, but it can be done.
i did lose one of the lower throttle body bolts and of course, it's longer than anything i've got.
so i'll have to try to find something that will work on monday when i go to work.
DaveInDenver
Rising Sun Ham Guru
Yoiks!
http://www.schrader-bridgeport.com/...Task=sobi2Details&catid=2&sobi2Id=5&Itemid=59
Valve Cores
A Schrader® valve consists of a hollow cylindrical metal tube, typically brass, with the exterior end threaded. The interior end form varied depending on the application of the valve. In the center of the exterior end is a metal pin pointing along the axis of the tube; the pin's end is approximately flush with the end of the valve body.
Most Schrader® valves used on tires have threads and bodies with a standard exterior size allowing for universal caps and tools whether the tire is on an automobile, bicycle or even a wheelbarrow or lawnmower. A Schrader® valve can be used to control: Air, nitrogen, R12, R22, R134a, oils, Halon, SF6, Petrols, butane, propane.
mbella1
0
Why did you replace the injectors? was it running rough before or just doing some mainteneace? It could be you got some debris in one of the injectors while installing it.
nuclearlemon
Hard Core 4+
just maintenance. my 80 had a hard life before i got it.
nuclearlemon
Hard Core 4+
hhhmmmmm, first off, i got it running, see the post a few above, it appears it was the injector as i suspected. second, i don't have a 22re. third, i'm very happy i don't have just four cylinders, it would really be a dog then
