lovepl

So I brought my car to the mechanic this morning,

-1992 Honda Civic GL Sedan, Auto-transmission
-D15B4 with dual carby

and left it there for him to fix the carbs. He rang me up later this afternoon, and tells me the carbys are completed F***ed. He says something about, the car runs fine, starts fine, but when the car gets hot, the choke doesnt close and too much fuel gets into the engine. His telling me to replace the whole carburetor which would be costly, I've checked around the net and the price are ridiculous!

So, can't I just replace the choke? or do I need to replace the whole carbs? Is he lying to me? Any help would be appreciated.

p.s full apologies in advance, if I seem like such a noob with cars =]

lovepl

extra info..

-Just had a Full Tune up
-Full Service
-Timing belt and Water pump replaced
-Distributor been replaced
-Master Cyclinder been replaced
-Valve gasket cover been replaced

had these done last week. Are these connected/linked to the carburetor in any way? or they seperate?

apexi_rsx

i would just swap to a mpfi system off a 88 crx si. get the ecu some wires and get the intake manifold and injectors. this way you wont have to worry about the carbs anymore and will gain a few extra hp and more throttle response with the direct port with an injector every cylinder. many write ups on this just google and seach for dpfi to mpfi conversion

cevax

You never said what's wrong with the car? Is it an idle problem, bogs down? High idle? If its any idle issues it could need to be clean or you might have to switch out the wax pot.. I believe that's what its called. Like stated above, the mpfi would be the easiest, not very expensive an no more carbs.

thenext

I haven't ever worked on a carburated honda motor but I do know from working on carbs that the choke is there for only one purpose: For cold starts.

lovepl

Sorry for sounding such a noob.......Does that mean I don't have to do a engine swap in-order to convert dpfi to mpfi?

Can I use my current engine D15b4 for mpfi? So what happens to the carbys? do they get removed or something? Is Dual carby another way of saying dpfi? Is dual carby and dpfi the same thing?

Sorry for the hassle =]

92b16vx

No you don't have to swap the engine, just the fuel injection system. This isn't a real familiar topic here in the states because we never had carbed Hondas, but I saw a few of them over in Germany.

Former User

Only one thread per topic is allowed. Duplicate threads merged.

lovepl

My Honda's a dual carby.......not even a fuel inject to begin with..........I don't think the conversion from DPFI to MPFI will work?

apexi_rsx

heres 2 conversions amazing what google finds in one second of searching..

http://hondaswap.com/swap-articles/d...writeup-49557/


http://b20vtec.com/forums/technical-...-diagrams.html

NO YOU DO NOT NEED TO SWAP ENGINES TO DO THIS SWAP

lovepl

thing is....thats gona be costly though.....converting from carb to mpfi

i heard somewhere its cheaper to sell the car.....and buy a mpfi one?

i only just bought this car, dont really plan on selling it >.<

TunerN00b

Manual choke conversion might be the cheapest solution here.

I've had several vehicles where the choke didn't close correctly after warmup, and they were all due to the spring no longer working correctly. Converting from an automatic choke to a manual replaces the spring with a cable, so the driver can manually open/close the choke.

The mechanical portion of the choke doesn't really have anything that can go bad other than the spring.

Now, doing this isn't legal in pollution controlled areas of the US (too many idiots drove around with an open choke after the car warmed up), but I'm assuming that won't be an issue.

apexi_rsx

85 buck on ebay for a obd0 mpfi civic ecu . you can do the wiring yourself for the injectors. and get a intake manifold for 30-40 bux with the injectors. u will have lil less then 200 invested and probably the best power and throttle response mod you can do. then u would never have to worry about the choke anymore.