Search found 15 matches
- Sun Sep 29, 2019 11:56 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE Blacktop 20V IACV
- Replies: 16
- Views: 16284
Re: 4AGE Blacktop 20V IACV
Remove the filter from the fresh air side of the ISCV and block the end of the tube with your thumb. You should be able to regulate the idle speed by varying the amount of "blocking" you are applying with your thumb. Tptally blocked the engine should either stall or drop to a very low idl...
- Thu Sep 26, 2019 5:42 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE Blacktop 20V IACV
- Replies: 16
- Views: 16284
Re: 4AGE Blacktop 20V IACV
First up you don't want your throttle cable to be tight. The throttle arm must return and rest on the throttle stop to make sure that the throttle butterfly is fully closed when you are off the gas, The cable itself should have just a little bit of slack so it cannot hold the throttle arm off the t...
- Tue Sep 24, 2019 12:41 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE Blacktop 20V IACV
- Replies: 16
- Views: 16284
Re: 4AGE Blacktop 20V IACV
jondee86 wrote:Cycling on the fuel cut... engine speed above around 1700 rpm and closed throttle.
Back the engine speed down to 1500 - 1600 rpm and it will stop doing that
Cheers... jondee86
You lost me there. What should I do?
- Mon Sep 23, 2019 2:41 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE Blacktop 20V IACV
- Replies: 16
- Views: 16284
Re: 4AGE Blacktop 20V IACV
Just an update. I changed out the plugs, reconnected the MAP, and shortened my throttle cable. There was some slack on it and I had no more tension so now the tension I can get it to sets the idle at is 2K RPM. I have feeler gauges coming tomorrow and I will adjust the TPS. My idle is erratic as see...
- Wed Sep 18, 2019 4:38 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE Blacktop 20V IACV
- Replies: 16
- Views: 16284
Re: 4AGE Blacktop 20V IACV
Make sure that the hose for the MAP sensor is not split or leaking. Check that the water temperature sensor for the ECU is not broken ior unplugged. Black plugs usually mean that the engine is running rich. Once you have checked the above put in a new set of plugs, then check the TPS setting and ig...
- Sun Sep 15, 2019 1:24 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE Blacktop 20V IACV
- Replies: 16
- Views: 16284
Re: 4AGE Blacktop 20V IACV
The ISCV modulates (changes position smoothly) the amount of idle air entering the engine by opening and closing as instructed by the ECU. If you like, it will change the engine speed much as if you were keeping the engine running by gently opening and closing the throttle a fraction. It is unlikel...
- Sat Sep 07, 2019 11:46 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE Blacktop 20V IACV
- Replies: 16
- Views: 16284
Re: 4AGE Blacktop 20V IACV
Hello, are there any USDM IACV's that are compatible with the 20V IACV? I bought a used one on ebay after experiencing a high idle with my old one and now I have a rough idle. Have you tried cleaning the valve (blasting carb cleaner down the tubes until no more black stuff comes out)?? Cheers... jo...
- Mon Aug 26, 2019 3:22 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE Blacktop 20V IACV
- Replies: 16
- Views: 16284
4AGE Blacktop 20V IACV
Hello, are there any USDM IACV's that are compatible with the 20V IACV? I bought a used one on ebay after experiencing a high idle with my old one and now I have a rough idle.
- Mon Jun 03, 2019 3:09 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: Vacuum Line Question
- Replies: 2
- Views: 3611
Vacuum Line Question
Can someone tell me what this line should be connected to?
https://photos.app.goo.gl/RTQCcmA4B22GkVZn9
https://photos.app.goo.gl/RTQCcmA4B22GkVZn9
- Wed Apr 24, 2019 7:54 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: 20v Blacktop Spark Plug Wire / Ignition Questions
- Replies: 3
- Views: 6477
Re: 20v Blacktop Spark Plug Wire / Ignition Questions
Any other suggestions. I use a 1UZ-FE distributor so I use this style boot for my 20V.
https://i.ebayimg.com/images/g/UFEAAOSw ... -l1600.jpg
https://i.ebayimg.com/images/g/UFEAAOSw ... -l1600.jpg
- Fri May 04, 2018 5:18 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: Code 33, 41, 42
- Replies: 5
- Views: 7174
Re: Code 33, 41, 42
It's a blacktop 20V
- Wed May 02, 2018 4:17 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: Code 33, 41, 42
- Replies: 5
- Views: 7174
Re: Code 33, 41, 42
No I just unplugged the TPS. Anywhere I can find a vacuum routing diagram?
- Tue May 01, 2018 2:08 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: Code 33, 41, 42
- Replies: 5
- Views: 7174
Code 33, 41, 42
Hello everyone, I removed my intake manifold and IACV in order to clean the IACV and got codes 33, 41, and 42. I read that 41 and 42 are the TPS and MAP. I checked both and they are plugged in. In ideas on what I should be looking for?
- Sat Mar 11, 2017 3:54 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: Distributor Identification
- Replies: 5
- Views: 5467
Re: Distributor Identification
jdm86gtz wrote:Looks like a 1UZ-FE distributor cap
Thanks that was it. Now I gotta figure out what wires to use lol.
- Mon Mar 06, 2017 6:53 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: Distributor Identification
- Replies: 5
- Views: 5467
Distributor Identification
I have a 4AGE Blacktop in my 86 with this type of distributor. Can anyone tell me what kind of car it's for because I want to do a tune-up on the engine.