 91 4afe to 93 7afe questions... |
 Jan 11, 2008 - 2:28 PM
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Enthusiast  Joined Jun 19, '06 From Portland, OR Currently Offline Reputation: 1 (100%)  |
Ok, bought a 93 corolla DX.. thought for sure it was a 4afe.. it's hard as hell to tell the difference between the 4afe and 7afe sometimes.. I guess I just have to take a peak at the ECU. The VIN says it's a 1.8L... however, checking the VIN both engines use an A as the 4th digit lol.
I got a 91 4afe for a 100 dollars.. was going to pick it up tomorrow.. 115K miles and a new timing belt. So now my question is... I know I can use the 4AFE but what would I need to change on the motor to run the 4AFE with the 7AFE ecu/harness so this can be as quick and simple of a swap as possible? The motor in the corolla has a hole in the block directly below the oil filter.. have no idea why.. didn't get to investigate yet. I stuck my fingers in though and I didn't feel a piston rod or anything strange.. lol. The ever so small amount of power difference between the 2 motors doesn't bother me, this is more about economy and reliability than power. -------------------- 87 4runner DLX 22re, 5spd, 4.30gr, 4" lift, 30" tires, HID w/ Projectors, 6spkr + sub, custom exhaust, 94 celica leather seats, SR5 gauge cluster and clinometer. Future engine swap... possibly a 2jzge.
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Replies
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Jan 11, 2008 - 8:15 PM
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 Enthusiast Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%) |
I'm pretty certain that the 7AFE uses a knock sensor and the 4AFE doesn't so if you swap the 4AFE in, you'll either need to also use the 4AFE ECU, or tap/install the knock sensor.
OT: This is another good example of a thread that should stay in the engine/transmission/maintenance forum because it is related to Celica STs. -Doc -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
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Jan 11, 2008 - 8:44 PM
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Enthusiast Joined Jun 19, '06 From Portland, OR Currently Offline Reputation: 1 (100%) |
QUOTE(Dr_Tweak @ Jan 11, 2008 - 8:15 PM) [snapback]630136[/snapback] I'm pretty certain that the 7AFE uses a knock sensor and the 4AFE doesn't so if you swap the 4AFE in, you'll either need to also use the 4AFE ECU, or tap/install the knock sensor. OT: This is another good example of a thread that should stay in the engine/transmission/maintenance forum because it is related to Celica STs. -Doc That is the only issue? I know that the 7afe uses a crank angle sensor.. 4afe also uses it? I read about other people saying that the 7afe harness and ecu will run the 4afe no problem... just wanted to be sure. -------------------- 87 4runner DLX 22re, 5spd, 4.30gr, 4" lift, 30" tires, HID w/ Projectors, 6spkr + sub, custom exhaust, 94 celica leather seats, SR5 gauge cluster and clinometer. Future engine swap... possibly a 2jzge.
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Posts in this topic
Punisher 91 4afe to 93 7afe questions... Jan 11, 2008 - 2:28 PM
Bitter between 92 and 93 the engine sensors and heads cha... Jan 11, 2008 - 7:53 PM Punisher well I know for sure now that it's a 7afe. The... Jan 11, 2008 - 8:02 PM Bitter they both use the same distributor when theyre fro... Jan 11, 2008 - 10:52 PM
Punisher QUOTE(Bitter @ Jan 11, 2008 - 10:52 ... Jan 12, 2008 - 12:45 AM Punisher I finally figured it out!
When I had my 89 co... Jan 12, 2008 - 1:42 AM Bitter for all intents and purposes a 7afe is a bigger 4a... Jan 12, 2008 - 2:25 AM |
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