Hi guys, I've just swapped into my Civic Si a D16A9, the euro version of the ZC, with the pm7 ECU and Si tranny, but it's giving me some problems...

It starts, but only 2 pistons seems to fire, and the ECU gives me error 11... I've searched, but in every list of errors i've checked there isn't error 11...what's wrong? the distributer and cam angle sensor wiring maybe?

 

i have a b18 and ecu and wiring harness just buy that and put it that in. u'll get more power. but with the zc i have not a clue. sorry

 

do you have catalytic converter and O2 sensor? - if so, you need different ECU - you need a PM7 that looks for O2 sensor - the code 11 is for the IMA sensor which was on non-cat equipped D16A9s which didn't have the O2 sensor - the PM7 you have is obviously looking for the IMA sensor - as for not firing, do you have all the wiring correct (including spark plug wires in the right locations)?







Modified by jlicrx at 11:45 AM 10/12/2007

 

i think pm6 ecu will be good..not sure still

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Walterronny &raquo;</TD></TR><TR><TD CLASS="quote">i think pm6 ecu will be good..not sure still</TD></TR></TABLE>

PM6 will be fine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Walterronny &raquo;</TD></TR><TR><TD CLASS="quote">i think pm6 ecu will be good..not sure still</TD></TR></TABLE>
a PM6 ECU would work, just not as well as the PM7 or even a PG7 (which probably isn't an option for him)

 

did you change the wire on the plug for the cam positioning sensor ? If not this may be the cause of your trouble the pm7 computer is fine

 

I've wired the cam sensor, and I've tried the PM6 ECU, in fact with that installed the CEL don't lights up. I think I'm able to find the PA sensor, so I'm going to install that and then reinstall the PM7. For the misfiring some friends of mine told me that could be injectors, that after having run with gas for long time are blocked...I'm gonna try to put the D16A6 injectors, if they fit...

ah, thank you very much jlicrx, you were very exhaustive about the ECU error

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spazius &raquo;</TD></TR><TR><TD CLASS="quote">I've wired the cam sensor, and I've tried the PM6 ECU, in fact with that installed the CEL don't lights up. I think I'm able to find the PA sensor, so I'm going to install that and then reinstall the PM7. For the misfiring some friends of mine told me that could be injectors, that after having run with gas for long time are blocked...I'm gonna try to put the D16A6 injectors, if they fit...

ah, thank you very much jlicrx, you were very exhaustive about the ECU error </TD></TR></TABLE>it is the IMA sensor, not the PA sensor - if you have a cat and O2 sensor, you really need an ECU that reads the O2 in order for it to run right - if you take off the cat (if it has one) and get rid of the O2, then you could use the IMA

 

well, the engine was born without O2 sensor and cat, but I have cat and the hanging connector of the O2 sensor without it attached.

The PM7 ECU I have is from the same car of the engine, so I think that i can use it, right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spazius &raquo;</TD></TR><TR><TD CLASS="quote">well, the engine was born without O2 sensor and cat, but I have cat and the hanging connector of the O2 sensor without it attached.

The PM7 ECU I have is from the same car of the engine, so I think that i can use it, right?</TD></TR></TABLE>yes - i would put in IMA sensor and eliminate the cat and the O2 - you don't have to meet emissions requirements in Italy do you? - will run better without a cat

 

ok, it's what i'm gonna do...

now, could I run with PM6 and without O2 sensor? PM6 gives me error 9 now...seems worse than 11

 

to wire in the IMA sensor, it has three wires - yellow/white, green/white and brown - the yellow/white is the +5volt reference signal - the green/white is ground - the brown runs to ECU pin B20 - right now you should already have a brown wire at B20 - this brown wire is for the ignition timing jumper - the PM7 ECU that you are using needs to have the brown ignition timing jumper wire at pin C16 (where O2 sensor would be on the ECU looking for O2) instead of at B20 - you need to cut the brown wire going to ECU pin B20, cut the white wire going to ECU pin C16 and connect the brown wire from the harness side to the white wire at the ECU side at C16 - you then need to run the brown wire from the IMA sensor to the cut brown wire at the ECU pin B20 - the yellow/white and green/white wires for the IMA can be spliced into the yellow/white and green/white wires from the TPS

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spazius &raquo;</TD></TR><TR><TD CLASS="quote">ok, it's what i'm gonna do...

now, could I run with PM6 and without O2 sensor? PM6 gives me error 9 now...seems worse than 11 </TD></TR></TABLE>PM6 is going to be looking for the O2 sensor - it usually won't throw a check engine light (code 1) right away - it will show up after it is running a while and the ECU senses that it is not getting a reading - don't know why it would give you code 9 on the PM6 and not on the PM7 - code 9 usually means that the cylinder sensor on the exhaust cam is not working right (rare) or that the wiring to the sensor is incorrect or that camshaft timing is off

 

the cylinder sensor where is? i'll check the timing anyway...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spazius &raquo;</TD></TR><TR><TD CLASS="quote">the cylinder sensor where is? i'll check the timing anyway...</TD></TR></TABLE>cylinder sensor is on the end of the exhaust camshaft, right beside the distributor - you should have had to rewire the distributor to get the wires to the sensor

 

maybe i have set the wires wrong, i give a try and turn them...

 

nothing, inverted the 2 wires and resetted the ECU but the error remains, I'm thinking it's out of timing...

I've changed the injectors with the ones of the old A6, now it doesn't seems to misfire, but it continues to idle at 3000 rpm and turning badly, I can't describe very well how it goes, I can only say "roughly"

tomorrow I hope to obtain the PA sensor and install it with PM7...but I think it's not concerned with it...

 

Good news, I'm a bit embarassed saying this, but I forgot to register the throttle cable, today I registered it and now at idle it stay at normal idle speed, and it goes pretty good...

I've tryied the car on the streets, it seems to go fine until 3000-3200 RPM, then seems that fuel isn't injected...

PM6 ECU gives errors 1, 4 and 9.

1 I know it's about the O2 sensor, 4 is about the crankshaft position sensor, where is it? About the 9 tonight I try to change once again the wires of the CYL sensor...

and tonight I hope to receive the PA sensor too, so I think I'm going to install PM7 ECU

 

Ok, I have PA sensor and it's wires, I'm going to install it, but I haven't understood a thing in your description of how wire it, you're talking about the PM7 for the non cat version? 'cause I have that, with the IMA sensor on the top of it where the PA sensor cable is going to be attached, and I'm not sure you're talking about that one

 

I'm just going mad


I wired the IMA sensor and installed the PM7 ECU, I took a little ride, and ECU now gives me errors 4 and 9, plus the rev limiter seems to engage at 3200 RPM

I think that the wiring of the distributer and of CYL sensor are wrong, I've followed THIS guide, but I'm not sure it works... someone knows what's the order of the wires?

 

double check your wiring..you might need a new distributor

 

thw color of the wires of the Si harness are correspondig to those of the distributor?

 

Ok, there were 2 wires of the distributor inverted, and the 2 of the CYL too, now it's running fine, thank you very much guys