1991 crx hf z6 swap bogging under load

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Old Mar 2, 2013 | 03:36 PM
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Default 1991 crx hf z6 swap bogging under load

So i finally finished my swap and revs just fine but ANY TYPE of load will make it bog extremely bad. I have read and read and read and looked and looked but all the posts i have seen, they are able to drive but cant accelerate much. I cant accelereate at all.
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Old Mar 2, 2013 | 05:57 PM
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Default Re: 1991 crx hf z6 swap bogging under load

Figured out what it was. Its my map sensor.
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Old Mar 6, 2013 | 04:30 PM
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Default Re: 1991 crx hf z6 swap bogging under load

Ok so I thought it was my map sensor so I extended the wires to the map sensor on the throttle body (I have a z6 swap) and it runs better now but still bogs when under load. Its sorta, kinda, not really drive able because of the bog and exhaust not being hooked up. I know it'll lose power because of the exhaust but not this much. Any ideas on what it could be?
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Old Mar 6, 2013 | 04:40 PM
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Default Re: 1991 crx hf z6 swap bogging under load

Timing?
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Old Mar 6, 2013 | 04:54 PM
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Default Re: 1991 crx hf z6 swap bogging under load

Bought a brabd new distributor, cap, and rotor. Set the mechanical timing to tdc, and then popped the distributor in and set it to the middle.
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Old Mar 6, 2013 | 05:29 PM
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Default Re: 1991 crx hf z6 swap bogging under load

Ignition timing is separate from mechanical timing. You'll need a timing gun to set it properly (real easy to do). Willing to bet that's all it is that's causing the bog.
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Old Mar 6, 2013 | 08:02 PM
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Default Re: 1991 crx hf z6 swap bogging under load

*sigh* now i feel dumb.. it came out of a running car..
I dont have a timing light.
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Old Mar 10, 2013 | 09:44 AM
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Default Re: 1991 crx hf z6 swap bogging under load

I can move around in my driveway just fine. As soon as i start to drive in the alley or anywhere else, it bogs.
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Old Mar 10, 2013 | 01:55 PM
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Default Re: 1991 crx hf z6 swap bogging under load

HEEEELP.
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Old Mar 11, 2013 | 11:38 AM
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Default Re: 1991 crx hf z6 swap bogging under load

Sunday funday bump. I really need help
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Old Mar 11, 2013 | 01:00 PM
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Default Re: 1991 crx hf z6 swap bogging under load

You should go out and check your ignition timing so you could at least eliminate timing as a culprit. Since you haven't for whatever reason, try advancing/retarding the distributor in small increments and see how the affects the bog. Post back your results, maybe someone else will have posted another suggestion not related directly to timing by then.

Also, have you verified that your mechanical timing is in fact still correct since having started the engine? And another random thought, may it possibly be a bad TPS?
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Old Mar 11, 2013 | 01:31 PM
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Default Re: 1991 crx hf z6 swap bogging under load

Are you throwing any codes? Are you running obd1? And what ecu?
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Old Mar 15, 2013 | 09:36 AM
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Default Re: 1991 crx hf z6 swap bogging under load

Idk why but my cel light stopped working one day while i still had the old motor in so i have no idea if im throwing any codes. I had a buddy come over and we readjusted the timing and i havent driven it since because i havent had time.
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Old Mar 15, 2013 | 01:02 PM
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Default Re: 1991 crx hf z6 swap bogging under load

Originally Posted by jimmy o.
And what ecu?
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Old Mar 18, 2013 | 08:56 PM
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Default Re: 1991 crx hf z6 swap bogging under load

P28 converted from auto to manual. I checked all around where they did the conversion and nothing looks burned. The only other ecus i have, are obd0.
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Old Mar 19, 2013 | 07:49 AM
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Default Re: 1991 crx hf z6 swap bogging under load

Bump
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