Engine swap

Tiny
CUBAFRMDANYCS
  • MEMBER
  • 2002 HONDA ODYSSEY
  • 195,361 MILES
I am tired of having to go mechanics every couple months over a transmission issue. What would be the best engine swap I can do on my van to keep the same horse power or increase with out having transmission problems?
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Sunday, February 10th, 2019 AT 5:52 PM

8 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi and thanks for using 2CarPros.

You have me a bit confused. Is there a transmission or engine problem? If you need to replace the engine, everything on the car is designed for the one in it. In other words, everything needs changed if you decide to use a different engine other than the same year make and model engine you presently have, which I don't suggest.

Explain what is happening so I can better understand if the problem is transmission or engine related. Also, tell me what is happening. I may be able to give you some suggestions to remedy the problem.

I will watch for your reply.

Take care,
Joe
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Sunday, February 10th, 2019 AT 8:51 PM
Tiny
CUBAFRMDANYCS
  • MEMBER
I bought the van with 191,000 plus miles after three months I had to replace the transmission. Since then I been getting a p0740 and p1676 engine codes letting me know it is a transmission issue. I take it to a mechanic they tell me there is nothing wrong. I feel the transmission at time running sluggish or as it is in first for long periods of time. My TCS and ABS light comes on every few days and when I turn the engine off and turn back on the lights go out. I just want an engine and transmission that does not have transmission issue's as this one does.
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Monday, February 11th, 2019 AT 2:15 AM
Tiny
STEVE W.
  • EXPERT
Reading the symptoms you posted, was the replacement transmission a new one? Rebuild or used? The codes both point to control circuit malfunctions like a pinched or damaged wire, very easy for that to happen when reinstalling a transmission and you don't watch carefully.
As for doing a swap, as Joe says, there isn't really anything you can do except install the same engine and transmission types that you have. However, for the codes you have I don't think that would help as it sounds like there is an issue in the wiring.

Next, I would find a different shop that works on Honda's. It sounds like the current one doesn't really care to solve the problem.
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Monday, February 11th, 2019 AT 5:26 AM
Tiny
CUBAFRMDANYCS
  • MEMBER
I have been to three different shops and they all seem to tell me the same thing.
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Monday, February 11th, 2019 AT 3:16 PM
Tiny
CUBAFRMDANYCS
  • MEMBER
Thank you for the help. I will try a shop that rebuilds Honda's for drag racing and see if they can help.
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Monday, February 11th, 2019 AT 3:20 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Welcome back:

I agree with Steve. I have a feeling a wire was damaged or pinched when the work was done. Let us know what you find out.

Take care,
Joe
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Monday, February 11th, 2019 AT 7:08 PM
Tiny
CUBAFRMDANYCS
  • MEMBER
Wires were good no problems there. Decided to just let it be and drive it until the wheels fall off or until it completely dies on me.
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Wednesday, February 20th, 2019 AT 3:39 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Welcome back:

Since there is no evidence of a damaged wire, then further testing is required. I realize you are tired of checking it but thought I would add this in case you want to try it.

___________________________________________

P1676
DTC P1676: Frame to Powertrain Torque Down Request (FPTDR) Signal Line Failure.

1. Reset the PCM.
2. Start the engine and wait 10 seconds.

Is DTC P1676 indicated?

YES - Go to step 3.

NO - Intermittent failure system is OK at this time. Check for poor connections or loose wires at the ABS/TCS control unit and the PCM.

3. Turn the ignition switch OFF.
4. Disconnect the negative cable from the battery.
5. Disconnect PCM connector E (20P) and the ABS/TCS control unit 16P connector.

See Picture 1
6. Check for continuity between the body ground and PCM connector terminal E16.

Is there continuity?

YES - Repair short in the wire between the ABS/TCS control unit and the PCM (E16).

NO - Go to step 7.

See Picture 2
7. Check for continuity between the ABS/TCS control unit 16P connector terminal No.1 and PCM connector terminal E16.

Is there continuity?

YES - Go to step 8.

NO - Repair open in the wire between the ABS/TCS control unit and the PCM (E16).

8. Reconnect PCM connector E (20P).
9. Reconnect the negative cable to the battery.

See Picture 3

10. Connect PCM connector terminals E16 and C28 with a jumper wire.
11. Reset the PCM.
12. Start the engine and wait 60 seconds.

Is DTC P1678 indicated?

YES - Substitute a known-good ABS/TCS control unit and recheck. If the symptom/indication goes away, replace the original ABS/TCS control unit.

NO - Substitute a known-good PCM and recheck. If the symptom/indication goes away, replace the original PCM.

__________________________________________

Here are a few links you may find helpful for testing:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

If you decide to try this, let me know if I can help.

Take care,
Joe
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Wednesday, February 20th, 2019 AT 5:56 PM

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