99% of the one's i have seen the IAT is always in the Airbox that hold the air filter element,
so at the other end of the intake hose to where your arrow is,
and not shown in your picture.
Search found 35 matches
- Thu Jul 02, 2020 3:01 am
- Forum: TECH: 4A-GE ENGINE
- Topic: Blacktop IAT?
- Replies: 3
- Views: 6209
- Tue Aug 20, 2019 4:19 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 7AG Block, Is there a best?
- Replies: 16
- Views: 13487
Re: 7AG Block, Is there a best?
I have been through a few 7A blocks,
never found one with oil squirters,
and never found any differences in the blocks,
just the extra's, as some had a dist and some were wasted spark and has a CAS built into the oil pump housing.
never found one with oil squirters,
and never found any differences in the blocks,
just the extra's, as some had a dist and some were wasted spark and has a CAS built into the oil pump housing.
- Tue Aug 20, 2019 4:13 am
- Forum: TECH: 4A-GE ENGINE
- Topic: Mystery 4AGE Harness Not Cut--Missing ECU Plug 3?
- Replies: 2
- Views: 4393
Re: Mystery 4AGE Harness Not Cut--Missing ECU Plug 3?
Not sure about the USDM harness,
but on all the JDM harness I have seen the 3 ECU plug is actually part of the dash loom,
as they are the wires that go to the vehicle rather than the engine.
but on all the JDM harness I have seen the 3 ECU plug is actually part of the dash loom,
as they are the wires that go to the vehicle rather than the engine.
- Fri May 17, 2019 3:04 am
- Forum: TECH: Corolla AE86
- Topic: Crank no start after warmed up
- Replies: 4
- Views: 5173
Re: Crank no start after warmed up
Sounds to me very much like a temp sensor issue.
- Mon Sep 03, 2018 4:34 am
- Forum: TECH: Corolla AE86
- Topic: Radio wiring help....
- Replies: 10
- Views: 9797
Re: Radio wiring help....
Pretty sure that the grren wire will be a dash light/park light feed,
used to light up the radio at nogth so you can see the buttons on the factory radio.
Not many aftermarket radio's use this wire.
Easy to check, turn on the lights and see if you get power on that wire.
used to light up the radio at nogth so you can see the buttons on the factory radio.
Not many aftermarket radio's use this wire.
Easy to check, turn on the lights and see if you get power on that wire.
- Thu Feb 22, 2018 2:57 am
- Forum: TECH: Corolla AE86
- Topic: rear tire skipping under hard braking
- Replies: 22
- Views: 16801
Re: rear tire skipping under hard braking
CloudStrife wrote:
Do you mean the nut that holds everything together at the top?
Because it is a pain to torque down proper. I stripped the threads on one side.
Yes that is the one.
- Sat Feb 10, 2018 12:53 am
- Forum: TECH: Corolla AE86
- Topic: AE86 16V - How to set ignition timing...
- Replies: 6
- Views: 16428
Re: AE86 16V - How to set ignition timing...
The idle contact in the TPS must also be closed to achieve correct timing,
although the CEL will probably flash a switch code if it is not set correctly.
although the CEL will probably flash a switch code if it is not set correctly.
- Sat Feb 10, 2018 12:51 am
- Forum: TECH: Corolla AE86
- Topic: rear tire skipping under hard braking
- Replies: 22
- Views: 16801
Re: rear tire skipping under hard braking
I had an issue with the rear skipping under braking in my race car, KE70 so similar setup to AE86. Found the problem a few days later when pulling apart that the top shock mounts were loose, (cant remember why now, but they had been out and put back in by someone else) The harder you braked the wors...
- Sun Dec 03, 2017 2:31 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGZE Pistons
- Replies: 10
- Views: 9176
Re: 4AGZE Pistons
I've found that there are a few companies in New Zealand do 4AGE and 4AGZE performance parts. SQ-Engineering and MRPLtd do the 8.9 pistons that I'm after. Will have to weigh up the cost if I can actually get them from Toyota at all anymore. Cheers guys. FWIW in New Zealand they are about the same t...
- Sun Nov 26, 2017 11:49 pm
- Forum: TECH: Corolla FWD / MR2
- Topic: OST-044: What the "F"?
- Replies: 25
- Views: 32456
Re: OST-044: What the "F"?
The MRP rods are also slightly longer than the standard 7A rod aren't they?
about 0.5mm from memory.
about 0.5mm from memory.
- Fri Jan 13, 2017 8:53 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: Blacktop Link G4+ ECU
- Replies: 12
- Views: 10650
Re: Blacktop Link G4+ ECU
For dealing with detonation I solely rely on the skill of my tuner. I don't tune my own car, I take it to a professional tuner to get done on a dyno with good detonation listening equipment, and leave it at that.
And then make sure the fuel I use comes from a good source.
And then make sure the fuel I use comes from a good source.
- Fri Jan 13, 2017 5:08 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: Blacktop Link G4+ ECU
- Replies: 12
- Views: 10650
Re: Blacktop Link G4+ ECU
I just run a simple vvt on at 1500 rpm and off again above xxx rpm.
On the dyno you can find the best vvt switch off point for your setup, probably 6k to 7k rpm somewhere.
I am not a road car so we have not spent much on driveability.
On the dyno you can find the best vvt switch off point for your setup, probably 6k to 7k rpm somewhere.
I am not a road car so we have not spent much on driveability.
- Fri Jan 13, 2017 2:59 am
- Forum: TECH: 4A-GE ENGINE
- Topic: Blacktop Link G4+ ECU
- Replies: 12
- Views: 10650
Re: Blacktop Link G4+ ECU
I have had pretty much all the different versions of the Link ECU's on my 20V race car over the years. I have a Link G4+ Storm in it now. I have never had an issue with the standard 20V dist signals to the ECU, and have also wired up quite a few other 20V link ECU and have not had trigger issues wit...
- Mon Dec 05, 2016 1:55 am
- Forum: TECH: 4A-GE ENGINE
- Topic: I have a 4age frankenstein and its driving me crazy
- Replies: 35
- Views: 23369
Re: I have a 4age frankenstein and its driving me crazy
jondee86 wrote:
Since the ECU won't go into diagnostic mode unless the IDL switch is closed,
Cheers... jondee86
It will go into diagnostic mode, just the base timing will be incorrect.
- Sun Dec 04, 2016 10:23 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: I have a 4age frankenstein and its driving me crazy
- Replies: 35
- Views: 23369
Re: I have a 4age frankenstein and its driving me crazy
jondee86 wrote:does the advance change when the IDL switch closes ?? Like, if at 900rpm you move the TPS ever so slightly so that the
switch changes state, does the timing jump up or down ??
Cheers... jondee86
Yes it does change when the IDL switch switches.
- Sun Dec 04, 2016 2:23 am
- Forum: TECH: 4A-GE ENGINE
- Topic: I have a 4age frankenstein and its driving me crazy
- Replies: 35
- Views: 23369
Re: I have a 4age frankenstein and its driving me crazy
The TPS does matter, especially with the diagnosti connector bridged. The connector must be bridged AND the TPS contact closed before you can set the timing or it will bounce around as the ecu is not correctly in base timing mode. The number of times I have seen cars with the timing incorrect becaus...
- Thu Nov 17, 2016 11:51 pm
- Forum: TECH: Corolla AE86
- Topic: ID this wiring harness please...
- Replies: 3
- Views: 3415
Re: ID this wiring harness please...
The part at the top which looks like two wires heatshinked together,
That is the A/C evaporator temperature sensor and goes into the AC box to control the temp so it does not freeze.
So the rest of it is probably all AC stuff too.
That is the A/C evaporator temperature sensor and goes into the AC box to control the temp so it does not freeze.
So the rest of it is probably all AC stuff too.
- Thu Nov 17, 2016 11:43 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: T3 crank pulley alignment, 20v st
- Replies: 8
- Views: 6602
Re: T3 crank pulley alignment, 20v st
I take it that you also realise that the Blacktop 20V ones are different to everything else too.
From memory the BT 20V cambelt drive pulley is wider and the crank pulley is narrower,
so a mismatch of the wrong cambelt drive pulley will also put the alternator belts etc out of alignment.
From memory the BT 20V cambelt drive pulley is wider and the crank pulley is narrower,
so a mismatch of the wrong cambelt drive pulley will also put the alternator belts etc out of alignment.
- Wed Oct 19, 2016 2:52 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE 20V Adjustable cam timing with VVT
- Replies: 12
- Views: 14853
Re: 4AGE 20V Adjustable cam timing with VVT
yeah understand that, but didn't think that a few degrees of cam movement would make that difference, The VVT can show the gain in the low range, as the timing could be up to 25 deg difference between VVT and no VVT, but VVT turns off again at high RPM, 6200 or something, so the difference between V...
- Wed Oct 19, 2016 1:47 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE 20V Adjustable cam timing with VVT
- Replies: 12
- Views: 14853
Re: 4AGE 20V Adjustable cam timing with VVT
Was back at the dyno last week with the new build. When we originally built the engine years ago, we ran with the cam timing retarded. When you use the 7A block you lift the head up 17mm and so the cambelt pulls the camwheels about 1/2 tooth retarded. We ran it this way for few years and it made goo...
- Mon Oct 03, 2016 4:17 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE 20V Adjustable cam timing with VVT
- Replies: 12
- Views: 14853
Re: 4AGE 20V Adjustable cam timing with VVT
From what I remember when I looked into when playing around with bits,
the 5 degree difference in the ST and BT cam timing is in the cam.
Swapping from a BT VVT camwheel to a ST VVT camwheel did not change the actual cam timing at all.
the 5 degree difference in the ST and BT cam timing is in the cam.
Swapping from a BT VVT camwheel to a ST VVT camwheel did not change the actual cam timing at all.
- Fri Sep 30, 2016 12:39 am
- Forum: TECH: Corolla FWD / MR2
- Topic: 4agze cas...how to tell if its bad or not?
- Replies: 4
- Views: 5792
Re: 4agze cas...how to tell if its bad or not?
Measuring the resistance of the internal sensors would be a good start.
- Fri Sep 30, 2016 12:26 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE 20V Adjustable cam timing with VVT
- Replies: 12
- Views: 14853
Re: 4AGE 20V Adjustable cam timing with VVT
Good point,? I dont think there is a feed and return oil hole, just one feed that either has pressure applied or is vented and has no pressure. From memory lookimg into the cam wheel there was one hole for the locator dowell, but dont remember seeing where/how the oil gets into the mechanism. I will...
- Mon Sep 26, 2016 4:00 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGE 20V Adjustable cam timing with VVT
- Replies: 12
- Views: 14853
4AGE 20V Adjustable cam timing with VVT
So you can get aftermarket adjustable cam wheels for the 4AGE 20V, I know TODA and a few other make them, I had a set in the previous engine build, but they all do away with VVT, which is a big downside. I have been thinking about trying to make the factory VVT cam wheel adjustable. It only goes ont...
- Fri Aug 26, 2016 2:33 am
- Forum: TECH: Corolla AE86
- Topic: Flywheel bolts... the lowdown...
- Replies: 21
- Views: 18513
Re: Flywheel bolts... the lowdown...
I have had an experience with broken flywheel bolts on the 7A. http://i16.photobucket.com/albums/b20/MattDunn20V/7AGTE/FLB%202_zpszwxx8yqm.jpg I do believe there is quite a high chance that they were not tightened correctly though. Cannot remember if they were used, new genuine or new ARP. They let ...
- Wed May 11, 2016 4:17 am
- Forum: TECH: Corolla FWD / MR2
- Topic: help with timing
- Replies: 3
- Views: 4418
Re: help with timing
I have struck this before a couple of times, usually only on cars where the engine has been transplanted. I have found incorrect wiring which end up with power on the start feed wire to the ecu. I think from memory it is the STA wire in the ECU. This should only be powered while cranking as when the...
- Wed Mar 23, 2016 3:26 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 4AGZE on engine stand
- Replies: 5
- Views: 5430
Re: 4AGZE on engine stand
I had a set of spacers and bolts made for mine so I can put it on the stand with the flywheel on and still turn it.
Couldn't find the right things off the shelf.
Couldn't find the right things off the shelf.
- Wed Mar 23, 2016 3:23 am
- Forum: TECH: 4A-GE ENGINE
- Topic: crank sensor bracket
- Replies: 7
- Views: 9255
Re: crank sensor bracket
It's a VR sensor, not hall effect, but yes. '96 and later OBD2 4A and 7A engines use this. Do you know what the internals of the pump are like? Do they have the same width gears as the late model good 4AGE pumps? as the sensor on the crankshaft like that is much more accurate than the CAS/dist off ...
- Sat Feb 13, 2016 12:42 am
- Forum: TECH: 4A-GE ENGINE
- Topic: 20V 4A-GE ST - Starting issue
- Replies: 32
- Views: 18484
Re: 20V 4A-GE ST - Starting issue
I have found that if you need to constantly pump the throttle to keep a car going it is a fuel pressure problem. Pull the return line off not the feed line and put a hose on it into a bucket or container. If you don't get a decent amount of fuel out of the hose while cranking then you don't have eno...
- Sun Oct 11, 2015 4:14 am
- Forum: TECH: Corolla AE86
- Topic: 4AGE arp head studs issue?
- Replies: 15
- Views: 14657
Re: 4AGE arp head studs issue?
There has to be something else going on that hasn't been accounted for. Unless you just happened to get that one in a hundred thousand kits that didn't get heat treated or was improperly done or something like that. I also find it oddly suspicious when one shop has repeated issues that no one else ...