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Old 06-16-2009, 08:11 PM   #1 (permalink)
 
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Default d16y8+y7 dizzy+p28 ecu throwing code 9 (No.1 cylinder position sensor)

just got done putting a d16y8 in my 91 civic wagon and the car will bog only when you floor it other wise drives fine. code 9 which is No.1 cylinder position sensor. seems to be running lean.
p28 ecu obd0 to 1 jumper harness.
using a y7 dizzy spliced to obd1 then a conversion harness from obd1 to obd0.
also using stock a6 injectors with stock resistor box.
any advice appreciated

Last edited by y8wagon; 06-16-2009 at 08:24 PM.
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Old 06-16-2009, 09:10 PM   #2 (permalink)
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Your timing is off. Did you put a timing belt on recently?
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Old 06-16-2009, 09:12 PM   #3 (permalink)
 
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i followed the instructions in the manual. spun the engine over six times like it said and checked it and it looked good to go
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Old 06-16-2009, 09:45 PM   #4 (permalink)
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re-do it. report back
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Old 06-17-2009, 03:05 AM   #5 (permalink)
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check that the cylinder pos sensor + and - wires are not reversed i had the same thing happen as well. i switched them and it ran fine afterwards.
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Old 06-17-2009, 07:11 AM   #6 (permalink)
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that could be it too.
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Old 06-17-2009, 08:02 AM   #7 (permalink)
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How did you set the timing? DO NOT, use the crank timing marks. Pull the number one plug, use a long screwdriver or wooden dowel and set at tdc, align the cams timing marks, install the timing belt COUNTER clockwise, adjust tensioner, hand crank the engine to make sure there's no valve contact, and start.
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Old 06-17-2009, 02:07 PM   #8 (permalink)
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Quote:
Originally Posted by meccael View Post
How did you set the timing? DO NOT, use the crank timing marks. Pull the number one plug, use a long screwdriver or wooden dowel and set at tdc, align the cams timing marks, install the timing belt COUNTER clockwise, adjust tensioner, hand crank the engine to make sure there's no valve contact, and start.
explain? hes talking about ignition timing anyway. though could be affected by cam timing but still.. why not use the crank timing marks? the tdc mark is to set the bottom end to TDC more accurate than a screw driver in the plug hole... why design a feature and not use it? the crank pulley tdc does nothing more than help you set the bottom end to tdc. has nothing to do with the cam or timing belt. the belt will affect timing if its too long or too short. cam gear will affect weather its offset or not compared to the cam and if the cam was installed incorrectly. bottom end will always be tdc when aligned with the timing mark. what changes is if a different cam gear is used or belt jumps thats out of wack but piston cant slide on its own to offset the timing.
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Old 06-17-2009, 02:15 PM   #9 (permalink)
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The consensus is, your cam gear should match your ecu. If you are using the y8 engine(head and cam gear) you might want to switch to an obd1 cam gear. Then you could set your timing to the proper marks on crank.(should solve your bogging issue)

The ECU code might have something to do with the dizzy/wiring.
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Old 06-18-2009, 01:20 AM   #10 (permalink)
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cam gear matches the cam/head block combo, ECU could care less.
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Old 06-18-2009, 04:59 AM   #11 (permalink)
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That is what I always thought too, and mechanically that makes sense to me. However, in doing my research for going from OBD2 to OBD1 on my Y8, the majority of the people report that timing of the Y8 on an OBD1 ECU is not jus a simple offset number. I may be wrong sincei haven't done it yet, but I will be converting my set up in the future so we'll see.
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Old 06-18-2009, 05:55 AM   #12 (permalink)
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Quote:
Originally Posted by 97-Civic-Ex View Post
That is what I always thought too, and mechanically that makes sense to me. However, in doing my research for going from OBD2 to OBD1 on my Y8, the majority of the people report that timing of the Y8 on an OBD1 ECU is not jus a simple offset number. I may be wrong sincei haven't done it yet, but I will be converting my set up in the future so we'll see.
y8 on obd1 p28 stock map is off a little. if your using a y8 with obd1 ecu get obd1 ecu chipped with y8 basemap or tune it.
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Old 06-18-2009, 11:21 AM   #13 (permalink)
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Quote:
Originally Posted by SOHCpower View Post
y8 on obd1 p28 stock map is off a little. if your using a y8 with obd1 ecu get obd1 ecu chipped with y8 basemap or tune it.
Like I said, from research I noticed others have had a hard time with timing a y8 when going OBD1. Your statement of "P28 stock map is off a little" can be misleading. Unless you have more experience with it than these guys:

Turbo D16 • View topic - Has anyone figured out timing on the Y8

Since I haven't done it yet, I can't comment. However, from what the OP posted, it sounds like his timing is off and it could be because of what the above link-people have mentioned.
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Old 06-18-2009, 01:17 PM   #14 (permalink)
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What do you mean by having a hard time? It sounds like people are having a hard time understanding the different values used to to time a Z6 vs a Y8. Or are they having detonation problems? My stroked and 78mm bored Y8 runs with a Y8 head and chipped P28 using Hondata S300. I have no timing issues.
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Old 06-18-2009, 03:15 PM   #15 (permalink)
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Quote:
Originally Posted by sql_civic View Post
It sounds like people are having a hard time understanding the different values used to to time a Z6 vs a Y8.
That is what I mean.
So let me rephrase what I stated:

Quote:
Originally Posted by 97-Civic-Ex View Post
The consensus is, your cam gear should match your ecu. (FOR SIMPLICITY)

i.e. If you are using the y8 engine(head and cam gear) you might want to switch to an obd1 cam gear.

Then you could set your timing to the proper marks on crank...

Quote:
Originally Posted by 97-Civic-Ex View Post
Like I said, from research I noticed others have had a hard time UNDERSTANDING timing on a y8 when going OBD1...
Myself included, so I'll just keep it simple.
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Old 06-20-2009, 08:50 AM   #16 (permalink)
 
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thanks you for all the comments i'm working on it today and i'll let you know if an obd1 cam gear will work.
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Old 06-20-2009, 12:41 PM   #17 (permalink)
 
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switched to z6 cam gear and made sure the timing was right before and after. still throwing code 9 with new cam gear. went over dizzy conversion harness and good to go. next i'm switching to z6 dizzy and then check ecu conversion harness.
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Old 06-20-2009, 09:38 PM   #18 (permalink)
 
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dizzy wiring was wrong. runs better but still sluggish. only way to get any + timing is to advance dizzy all the way.
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Old 06-22-2009, 12:43 PM   #19 (permalink)
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Quote:
Originally Posted by y8wagon View Post
dizzy wiring was wrong. runs better but still sluggish. only way to get any + timing is to advance dizzy all the way.
or adjust your timing map for you ecu . its what we did on a friends integra but thats just us.
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Old 07-01-2009, 05:03 PM   #20 (permalink)
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i have the same issue. I get code 9 after 6k+ rpm on third gear. Could the alternator cause this issue?
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