My timing belt on my 1.6i-16 (ZC) snaped and I had to replace it. After replacing it I turned the motor over by hand and everything seamed to be ok. It starts up fine, but I get a solid CEL and the ECU flashes a code 9 constantly (I know its a cylinder position sensor error or something like that). Its plugged in though. If I let the car idel for to long it cuts off. The vavles sound like they need to be adjusted. And Im note sure if the timing is off or not, but the performance is not degraded. I did a compression test and got these results: (Dizzy) 185 175 165 180 (Timing Belt) What could be the problem here? Thanks

I reposted this with another title, hopefully I get some help this time.

 

That 165 is a little low, doesn't seem too low to where it would hurt you too much.

Did you double check your timing when you put the new belt on? There are two lines on the cam gear that need to be lined up with the head, are you sure you lined that up correctly. Double check that to make sure that what you're hearing isn't valves taping the piston.

 

ive always been told that compression should be within +-2% for each cylinder.. in which case your 175 and 165 cylinders would be outliers..

usually when you break a timing belt, you tap a couple valves enough to bend them. i would bet money that you are seeing the results of bent valves. You can get lucky.. but its unlikely.

the code 9 is a sensor in the distributor. usually replacing the distributor is the only option to fix it, unless you have some wiring problems.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by J4k3 &raquo;</TD></TR><TR><TD CLASS="quote">That 165 is a little low, doesn't seem too low to where it would hurt you too much.

Did you double check your timing when you put the new belt on? There are two lines on the cam gear that need to be lined up with the head, are you sure you lined that up correctly. Double check that to make sure that what you're hearing isn't valves taping the piston.</TD></TR></TABLE> I lined the two marks up as best I could, I didnt see a mark on the head to line them up to. So im not sure 100%

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sanimalp &raquo;</TD></TR><TR><TD CLASS="quote">ive always been told that compression should be within +-2% for each cylinder.. in which case your 175 and 165 cylinders would be outliers..

usually when you break a timing belt, you tap a couple valves enough to bend them. i would bet money that you are seeing the results of bent valves. You can get lucky.. but its unlikely.

the code 9 is a sensor in the distributor. usually replacing the distributor is the only option to fix it, unless you have some wiring problems. </TD></TR></TABLE>

Is there any way (besides removing the head) to check to see if the valves are bent? If they are would the car run at all? I didnt mess with any of the wiring, the timing may be off a little I did it as best I could w/ out a Timing Light (dont have one). Im pretty sure the sensor is seperate from the distributor on the DOHC ZC.

 

Yeah, the cam angle sensor is on the exhaust cam in that little box on a DOHC ZC. It's not adjustable, so that shouldn't be the problem.
My guess is that you have the timing belt off a tooth, which will make the car run a bit funny. You should set the engine to TDC on cylinder #1 and check it against your repair manual or a pic off of the web. Make sure that you have the ignition timing set properly also. It shouldn't throw a code with the amount of adjustment available on the distributor, but if you are a tooth off on the timing belt on the intake cam it will be too much to adjust out with the distributor. As far as the valves being bent, I don't know of any way to check them without removing the head, but I would suspect that the engine would run very, very badly if they were.

 

i had a similar problem with my zc... make sure you check your distributor wiring ...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HF2ZC &raquo;</TD></TR><TR><TD CLASS="quote">Yeah, the cam angle sensor is on the exhaust cam in that little box on a DOHC ZC. It's not adjustable, so that shouldn't be the problem.
My guess is that you have the timing belt off a tooth, which will make the car run a bit funny. You should set the engine to TDC on cylinder #1 and check it against your repair manual or a pic off of the web. Make sure that you have the ignition timing set properly also. It shouldn't throw a code with the amount of adjustment available on the distributor, but if you are a tooth off on the timing belt on the intake cam it will be too much to adjust out with the distributor. As far as the valves being bent, I don't know of any way to check them without removing the head, but I would suspect that the engine would run very, very badly if they were. </TD></TR></TABLE>

Ok, I will check that tommarow. I have a feeling that it might be off a little, any clue where I can find a good picture of that at? Im pretty sure the wiring is ok, Its all stock as the car is Euro spec and came with this engine. Ill double check all the connections though. The engine seams to be running ok, it just shuts off if left ideling to long (may be due to timing) Also could a leak down test detect a bent valve? Thanks


Modified by nexgen91 at 8:56 PM 5/2/2007

 

Ok so I double checked the timing, and realigned it and Im still getting this stupid CEL, I redid the compression test and got the following. 180 179 168 170 I forgot to hold the throttle open the other day. The dizzy is definatly hooked up right. So Im at a loss of options.

 

The head is probably F'ed up with thos kinda #'s.

 

if u want to check timing forsure and have crank and cam lined up is

1. take out plug and spark plug in cylinder 1.
2. find a long straight stick (screwdriver, detached attena)
3. place it into cylinder 1 till it touches the piston
4. with timing belt still on turn the cam or crank till the stick in cylinder 1 goes up all the way - stop right there, if it goes up and dips down then just slightly bring it back up where u think its all the way.

now your crank is in the right position. look at the cam and see if the tdc lines up, if not remove the timing belt and turn the cam to TDC.

5. replace timing belt and everything - pull out the stick and replace ur spark plug into cylinder 1. you should be at tdc and timing shouldn't be off on that end.

 

Im going to get a timing light, but untill then should I even drive the car or just let it sit?

 

bump for "but untill then should I even drive the car or just let it sit?"

 

i wouldnt drive it if i was you, but the best thing u can do is what i suggested - atleast that would forsure get ur timing as close as possible and the rest would be on firing, distributer side advancing or retarding the firing. i suggest that you make sure everything is tdc (how i suggested it up there) and fire it up see how it goes, make sure ur distributer isnt advanced all the way and adjust that only after u gettin the tdc down.

 

make sure your timing is correct on the crankshaft as well. i know the code 9 is cyl pos. but usually i see that when the dizzy goes bad. you have a dual zc, and they are infamous for going bad. do this. timing light. make sure its in spec. then check timing again. i remember that on the dual zc's it was harder than hell to line up the marks because they were SLIGHTLY off always. remember line them up then put the belt on, then adjust tensioner.

 

im sure the crank and cams where both at TDC, I took it apart and redid it just to make sure. I had changed the dizzy to one off my other CRX so maybe its bad, Ill swap them and see how it goes. Thanks

 

yo mykoe817on my 92 integra my cam gear marks are of by the smalest degree maybe 1 tooth would that stop my car from starting? and tyou know how u said to fix that slip off the timing belt and turn the cam gear how do i turn it will it turn its self by me twisting it with my hand?

 

use a 14 to turn it. turn it slowly. hmm thats strange how it's off by a tooth... ur timing can be a little off and it'll still start, it'll just wont run efficiently.