1986 Honda Prelude will crank but wont start

Spark, Fuel and timing are good -check whether the choke plate is opening up if not it'll dump a lot of fuel and cause it to flood out.

I have done that seems to work fine not sure what else it could be

Check the actual fuel pressure could be excessive due to a defective pressure regulator

where can that be located or what dose it look like

Is this a throttle body injection-which people at times think of it as carbuerator or it is an actual a carb or a multi point injection.

Pressure reguialtor are mounted within the ends of the fuel rail a little canister looking with a vacuum hose on it

ok i have found it has a gas line from the underside and a vac line from the top how can i test it and or what would you think the cost to replace would be

Remove the vacuum hose and inspect for fuel in it or the regulator side if present its a goner.

The color of the spark is orange or blue?

the spark was blue and i looked at the vac line seems to be dry and all around it is dry as well there is another device close by there that looks alot like it and has a screw with sping on it do you know what that might be looks like some kind of an ajustment

How did you check the timing? I need to know this before we can continue

by timeing marks the car was runing till about a week ago when i pulled out of my driveway and it died and wont start anymore have checked fuses

Open up the distributor cap have helper crank engine over while you check whether the rotor is turning.

Did you do a static or dynamic with a timing light

i have never done that not sure how to do it have always timed by marks will have to check dist cap in morning when i have a helper to turn it over

wouldnt the dist move in order to make the plugs spark i could be wrong

Put the engine on TDC line the markings oon the damper TDC/0 make sure your not on the exhaust stroke otherwise you gonna be 180deg off-where is the rotor point at is it no.1 or no4?

It is on the #1

Did you had anything to do with the timing belt before it refuses to start?

nope the car ran great then died and wouldnt restart the battery was tested also i am very stumped

Okay Buddy -Let me ask again does it crank over and refuses to start or just won't crank over at all.

it cranks over fine just wont start



sorry if i am bugging you if you dont want to help its fine just let me know thanks for help thus far

You're not bugging me my job here is to help you out-I'd have done that earlier if it is-

Do below and tell me what happened


Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil,distributor pick-up coil, ignition control module, cam and crank sensors-

In the event your getting spark and fuel is reaching the plugs-try to reset the the valve timing by putting engine no.1 piston on compression stroke/TDC then line the sprockets as you see below