MonkeyPuzzle

See new thread https://honda-tech.com/zerothread?id=2082474


update:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Relic1 &raquo;</TD></TR><TR><TD CLASS="quote">the main relay sits right above the ECU in your car. make sure it's not that.</TD></TR></TABLE>

ok so further investigation reveals taht the clicking is coming from a location above the ECU, so it appears that this main relay is the issue.

So is this something I will need to replace to fix, or is there some other trick?


--------------original post-----------------
I have a 96 DX Civic hatchback with a D16y7 from a '00 civic DX in it.
I am using the wiring harness, ECU and distributor from the 96 engine.

So when I am driving the engine will hiccup, almost like a quick little stall, at the same time there is an audible click, like a short or static zap, happening in the ECU.

Any ideas?

Modified by MonkeyPuzzle at 11:12 AM 8/28/2007


Modified by MonkeyPuzzle at 11:24 AM 8/28/2007

MonkeyPuzzle

one, more piece of information, this only happens when accelerating, does not happen when the car is idling

00Red_SiR

Check your ground wires, specifically the ones that attach to the thermostat housing. If they're even slightly loose, it will cause your car to do exactly what you're describing. The ground wires there are for your ECU so if the ground isn't good it's like switching your car/ecu on and off quickly. The clicking sound you hear is from your main relay switching on and off.

MonkeyPuzzle

Checked my grounds in the engine bay and cant see any problems, any other ideas?

00Red_SiR

So you're saying that they're tight and the surface is clean and not corroded? Just make sure they are tight ( on the thermostat housing), sometimes a visual inspection only looks tight but when you put a socket on it, you find out it's not.

Relic1

the main relay sits right above the ECU in your car. make sure it's not that.

LessRice

i dont know about the clicking from the ecu but when you swapped our motor did you adjust your timing at all... time to bust out the timing light would be my suggestion

MonkeyPuzzle

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Relic1 &raquo;</TD></TR><TR><TD CLASS="quote">the main relay sits right above the ECU in your car. make sure it's not that.</TD></TR></TABLE>

will check that too, thanks

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LessRice &raquo;</TD></TR><TR><TD CLASS="quote">i dont know about the clicking from the ecu but when you swapped our motor did you adjust your timing at all... time to bust out the timing light would be my suggestion</TD></TR></TABLE>

dont believe I touched the timing, but I think I would enjoy trying my hand at timing

MonkeyPuzzle

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Relic1 &raquo;</TD></TR><TR><TD CLASS="quote">the main relay sits right above the ECU in your car. make sure it's not that.</TD></TR></TABLE>

ok so further investigation reveals taht the clicking is coming from a location above the ECU, so it appears that this main relay is the issue.

So is this something I will need to replace to fix, or is there some other trick?

Relic1

replace = plug-and-play ~$50 new, ~$25 used

repair - http://www.marklamond.co.uk/te...y.htm - free if you can solder.

00Red_SiR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MonkeyPuzzle &raquo;</TD></TR><TR><TD CLASS="quote">

ok so further investigation reveals taht the clicking is coming from a location above the ECU, so it appears that this main relay is the issue.

So is this something I will need to replace to fix, or is there some other trick?
</TD></TR></TABLE>

Remember, a bad ground will also cause these exact same symptoms...