OBD2 Ignition Timing

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blenz
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OBD2 Ignition Timing

Post by blenz »

I just replaced the distributor on my 97 acura 2.2 CL. The car is OBD2 so the distributor does not turn to advance/retard the base ignition timing. As far as I know the ecu sets the base timing itself for OBD2 cars. When I checked the pulley with a timing light I found that it was around 8 or 9 degrees BTDC when it should be at 15 or 16 degrees. Since I am now running an OBD1 ecu I'm unsure how to set the base timing. Is there an easy way to do this in eCtune or do I just need to keep this in mind when tuning the ignition maps?

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Post by calvin »

TO my believe obd2 doesn't set it own base timing. All obd2 i saw you can adjust the dizzy to set your base timing. In eCtune you can lock your ignition to adj with a timing light or you can change the 16deg base timing to something else and that will reflect on your igntion maps
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Post by Gaskleppie »

I had a Euro accord R and that dizzy was also not adjustable. When checking the timing I found out it did not had to be changed, it was dead on 0 degrees when I set the ign timing check tool in eCtune at 0 degrees. This car did not had a extra marker, just the TDC marker so I had to set the timing tool to 0 degrees.
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calvin
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Post by calvin »

You put base timing to 0 right so you maps refelect everything correctly? and then add 16 to the map to get 16 deg at idle?
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Post by rschoener »

I did an 01 Accord with an F23. It did not have an adjustable Distributor either. I just changed my base maps until I got the timing set. Basically I only hade to offset the tables by 3 or 4 degrees to set my base.
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Post by Bugermass »

Fixed dizzy F22 and H22s usually idle about 14 deg.. I ususally just tune with that in consideration and don't mess with the base timing adjustment. Or you can just add +2 to everything..
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calvin
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Post by calvin »

what is better: Set base timing to 14 in eCtune and add 2 to your entire map. That way you have 16 again.
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Post by Gaskleppie »

You put base timing to 0 right so you maps refelect everything correctly? and then add 16 to the map to get 16 deg at idle?
I checked the timing with the ign tool. I left the base timing to 16* and just checked with 0* to see if 0* in the software was 0* on the engine. So basicaly this engine is idling at 16* now. But I still have an crack sensor error when I rev the engine. Anyone any idea?
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Post by Bugermass »

if the signal from your crank sensor and the signal from the dizzy don't line up properly it'll throw a crank sensor code. I had this issue on a H22 that was running a crank sensor on the crank, and had a movable dizzy.. when locked at 16.5 the dizzy should be at about 14.5 deg, then just add 2 to everything in the map and you'll be at your 16 base timing. Its kinda funcky but it works.
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Post by 98vtec »

Bugermass wrote:if the signal from your crank sensor and the signal from the dizzy don't line up properly it'll throw a crank sensor code. I had this issue on a H22 that was running a crank sensor on the crank, and had a movable dizzy.. when locked at 16.5 the dizzy should be at about 14.5 deg, then just add 2 to everything in the map and you'll be at your 16 base timing. Its kinda funcky but it works.
yea, OBD2 h22's are a very different breed from the older brother. adjustable cam gears are just about pointless on OBDII h22 setups. You cant adjust the exhaust gear without the ecu giving a CYP code. If you had an OBD1 distributor on there then obviously you bypassed the CKP sensor on the oil pump.
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Post by calvin »

don't add timing to the maps yet. Set the base timing in eCtune from 16. to 14 then add the maps + 2
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