Re: Main relay solder connections - quick fix?
You are accessing this site in a read-only mode. For full access to all member benefits, including message posting, please login or register. Registration is completely free, simple, and takes only a few seconds.
Login |
Free CarKB.com registration |
Whole discussion thread
The message you are replying to and its parents are listed in the reverse order with the most recent posts first. This might not be the whole discussion thread. To read all the messages in this thread please click here.
Re: Main relay solder connections - quick fix?
| hutchtoo | 31 Aug 2005 14:35 |
Yes, this was recommended. I tried it, no luck. People keep bringing this up.... I'll try it again, but damn, my battery is starting to run low... :P
> If you suspect that your fuel injected engine is flooded. Push the gas > pedal to the floor while starting. The ECU (electronic control unit) will > detect that the throttle is more than 2/3 of the way open and shut off > the fuel while starting for a period of time (I believe 15 seconds) to > clear the flooded condition. Then it will apply fuel to start the engine. |
| TeGGeR® | 31 Aug 2005 13:45 |
>> Remove a plug (or buy one) then reconnect the plug wire to it. Lay it >> on the valve cover (metal part of) so you see it from the driver >> seat and crank the engine over. You should hear a loud snapping or >> see sparks. > > Omit this part. I believe Tegger mention it already. A can't remember, anyone tell him to trya and clear a flooded condtion first?
 Signature TeGGeR®
The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/
|
| B Squareman | 31 Aug 2005 08:58 |
> Remove a plug (or buy one) then reconnect the plug wire to it. Lay it > on the valve cover (metal part of) so you see it from the driver > seat and crank the engine over. You should hear a loud snapping or > see sparks. Omit this part. I believe Tegger mention it already.
|
| B Squareman | 31 Aug 2005 08:32 |
> The last reco is a little out of my league, I think I'd need more docs about > plugs and sparks before attempting that. Remove a plug (or buy one) then reconnect the plug wire to it. Lay it on the valve cover (metal part of plug) so you see it from the driver seat and crank the engine over. You should hear a loud snapping or see sparks. Don't do this for more than 5 seconds. If you are getting fuel you'll just be dumping it into the on cylinder and not igniting it.
Otherwise, have a frined insert a screwdriver in the wire and hold it near ground and crank away. Make sure he/she doesn't touch any metal on the car or the screwdriver.
They also make spark checker.
http://www.etoolcart.com/browseproducts/Spark-Checker-In-line-with--90-degree-Bo ot--TA23920.html
This link is the same as above. http://snipurl.com/hc3g
|
| hutchtoo | 31 Aug 2005 02:15 |
Good news, I followed the steps below and felt every click. So the main relay is ruled out. Also tried the off-on x 6, the engine did not start.
The last reco is a little out of my league, I think I'd need more docs about plugs and sparks before attempting that.
> Not necessarily. All it means is that the fuel pump is running for two > seconds. [quoted text clipped - 19 lines] > gap > as somebody cranks. Any spark? |
| TeGGeR® | 31 Aug 2005 00:49 |
>> You dont' even have to touch it to prove if it's causing the problem. >> In a quiet place, turn the key to position II. Listen to fuel pump [quoted text clipped - 8 lines] > means the main relay IS working OK, since I didn't need to slap the > dashboard...? :) Not necessarily. All it means is that the fuel pump is running for two seconds.
Reach behind the dash so you can feel the Main Relay. Turn the ignition to ON (not START) There should be a click as the Check Engine light goes on, then anoher as it goes off. You will hear the pump run for two seconds. Turn the key to START. At that point you should feel a THIRD click.
If you feel all those clicks, the Main Relay is OK. If any clicks are missing, the Main Relay has a cracked solder problem.
If the Main Relay is OK, turn the key to ON, wait for the Check Engine light to go off, then turn the key to OFF again. Quickly repeat a half- dozen times or so. If it now starts, the fuel pump check valve is bad, allowing pressure to bleed off.
If it still does not start, check for spark as you crank. Buy a cheap spark plug at the store (doesn't matter what kind), pull one of the plug wires, insert the new plug, hold the hex part against a ground, then watch the gap as somebody cranks. Any spark?
 Signature TeGGeR®
The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/
|
| hutchtoo | 30 Aug 2005 23:08 |
> You dont' even have to touch it to prove if it's causing the problem. In > a quiet place, turn the key to position II. Listen to fuel pump run for [quoted text clipped - 3 lines] > > Have you checked that that your timing belt isn't broken yet? When I turn the key to position 2, I hear a soft ~2-second whir which is probably the pump, followed by a non-start. By your logic, that means the main relay IS working OK, since I didn't need to slap the dashboard...? :)
My timing belts are probably 15,000 miles old so they should be healthy.
Thanks for the helpful ideas.
|
| 'Curly Q. Links' | 30 Aug 2005 21:44 |
> In an earlier thread (1994 Honda Civic won't start) people recommended > that I check the main relay to rule out a failed solder connection (for [quoted text clipped - 7 lines] > > Thanks. =============================
You dont' even have to touch it to prove if it's causing the problem. In a quiet place, turn the key to position II. Listen to fuel pump run for 2 seconds. If it doesn't run, smack the dash and listen. If pump runs, it's your Main Relay. You car will now start, and the vibration will keep the relay working until you shut the engine off.
Have you checked that that your timing belt isn't broken yet?
'Curly'
|
| hutchtoo | 30 Aug 2005 17:52 |
In an earlier thread (1994 Honda Civic won't start) people recommended that I check the main relay to rule out a failed solder connection (for example http://www.tegger.com/hondafaq/mainrelay.html).
Would it suffice to simply touch up the existing connections with the tip of a soldering iron?
Looking for an easier workaround than re/desoldering just to rule out this simple part...
Thanks.
|
Quick links:
|
|
|