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hello guys i recently purchased a 1997 civic EX with a 1.6 litre vtec and auto trans for a gas saver... i did an engine swap and the thing runs pretty decent now... but my D4 light is blinking?? from what i understand it is like a service trans soon light or something.... anyone have any ideas what that could be

 
Rep Power: 246

Yes, it is a trouble code with the transmission. Did you leave any connectors loose? Otherwise you'll have to let us know what the code number is.

 
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Check for any loose or cracked electrical tranny connections, first. Make sure all hydraulic lines are installed properly- nothing reversed. Check fluid level - make sure you are using Honda fluid not a knock off. You might have to reset the light- is all.
Look for the obvious because that's usually what it is on civics.

 
Rep Power: 246

Totally agree with shady...it's almost always something simple.

 
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this damn car has given me so many problems... the codes are p0700 and p1758... the transmission seems to shift fine for a honda but i dont think the torque converter is locking???

 
Rep Power: 246

Ok, yes those codes indicate 'lock up clutch does not engage'. Possible causes (just as we stated-loose wires): A) Disconnected lock-up control solenoid valve B connnector, B) Short or open in lock-up control solenoid valve B wire, or C) Faulty lock-up control solenoid valve B.

I can't really type the instructions on how to track it down (it has diagrams). I can almost guaranty any problems you are having are due to loose/corroded connectors to the transmission/transmission ECU.

 
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now this selenoid is located on the passenger side of the tranny on the top correct??

 
Rep Power: 246

It's on top, yes. The 2pin connector is right there. Measure resistance between both terminals and body ground. This should be 14-25ohms. If that's within spec, the solenoid is fine. I'm still guessing connection somewhere.

 
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well i dont have the the meter to measure that... but all the connections look fine so im figuring the stupid selenoid is bad? anyone know where to get one

 
Rep Power: 246

Just out of curiousity, did you unplug and replug it a few times? If so, do an ECU reset procedure and see if you still have the codes. That might fix the problem. If not you can get a solenoid at a local dealer or on-line. There are several Honda dealerships that sell the parts on-line, but know that shipping and handling can sometimes make or break the cost savings difference. Not sure but some auto parts stores may also carry them *shrug*.

PS there is also a shift solenoid filter that is sandwiched between the solenoids and the transmission housing. I'd even try replacing that before buying a solenoid!

 
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yes i did unplug it a few times.... even took it out and looked it over and it seems fine...

 
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well the starter quit working... so i changed the starter and the D4 light stopped blinking.... i have no idea how or why but that was the fix to it

 
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go figure