Still I can't figure why my 93 h22 vtec motor is lagging. I checked the cap/rotor, spark plugs and wires, oil and it's good. This lagging situation means that when i drive on every gears it lags on acceleration with no power even on vtec engagement. If i step on full throttle from low end, the rpm would pick up slow and at high rpm it would sometime back fire. This is so weird.
Give me some hints or sumething dude...! Ooh i almost forgot, it suck-up more gas since it happened. Thanks

 

My air filter is good. But i kinda have a second thought, I remembered not so long ago a civic 96 ex wanted to race real bad with me, so i launch him on first gear and the clutch popped right back out, maybe a teeth of the cams slips from the timing belt that may cause it to run like shiet..Think so??

 

its possible that it could skipped a tooth....take off the valve cover, and then the side cover that covers the cam geaers, and put the motor tdc, and then make sure everything ligns up correct.

 

ohh b4 you do all that, i would check the timing...should be at 15 degrees......

 

How do you check the timing..Is it on the tran flywheel? And beside, how do i put the motor tdc and ligns it correctly. Is there a site anywhere where it shows how to line up tdc?? thanks

 

this is how you check timing taken from Lake mount lude

Ignition Timing

-*-Explanation- Ignition timing is the measurement, in degrees of cranksahft rotation, of the instant the spark plugs in the cylinders fire in relation to the location of the piston. Ideally, the air/fuel mixture in the cylinder will beignited and just beginning its rapid expansion as the piston passes TDC. If this hapens, the pistons will be beginning the pwoer stroke just as the compressed and ignited air/fuel mixture starts to expand. The expansion of the air/fuel mixture will force the piston down on the power stroke and turn the crankshaft. Due to the time it takes for the spark from the plug to completely ignite the mixture in the cylinder, the plug must fire beofre the piston reaches TDC so the mixture is completely ignited as the piston passes TDC. This measurement is given in degrees of crankshaft rotation before the piston reaches BTDC (Before Top Dead Center). If the ignition timing setting is 6 degrees BTDC, this means that the spark plug must fire at a time when the piston for that cylinder is 6 degrees BTDC of its compression stroke. However, this only holds true while the engine is at idle. As you accelerate from idle, the speed of your engine increases. This increase in engine speed means that the pistons are now traveling up and down much faster. Because of this, the spark plugs will have to fire even sooner if the mixture is to be completely ignited as the piston passes TDC. To accomplish this, the system incorporates a means to advance the timing of the spark as the engine speed increases. The mechanical distributor has two means of advancing the ignition timing. One is the centrifugal advance and is actuated by weights in the distributor. The other is a vacuum advance and is controlled in that large circular "can" on the side of the distributor. Fully eletronic systems use the Enginc Control Unit to control the trigger signal to the coil. The computer can provide for much more accurate spark control than mechanical units. In addition, some Honda distributors have a vacuum retard mechansm which is contained in the same housing on the side of the distributor as the vacuum advance. Models having two hoses going to the distributor vacuum housing have both vacuum advance and retard. The function of this mechanism is to regulate the timing of the ignitnion spark under certain engine conditions. This cuases more complete burning of the air/fuel mixture in the cylinder and consequently lowers exhasut emissions. If ignition timing is set too far advanced (BTDC), the ignition and burnign of the air/fuel mixture in the cylinder will try to oppose the motino of the pison in the cylinder while it is still traveling upward. This causes engine ping, a sound similar to marbles in a cofee can. If the ignition timing is too far retarded (ATDC), the piston will have alread started down on the power stroke when the air/fuel mixture ignites. This will cause the piston to be forced down with much less power. This will result in rough engine performance, lack of power and poor gas mileage.

-*-Before Beginning- DO NOT grasp the top of the distributor cap while the engine is running, as you might receive a nasty shock. Instead, grab the distributor housing to rotate (the plastic piece).

-*-Procedure- 1. Remove the rubber cap from the timing window on the engine.
2. Start the engine and allow it to warm up. The engine is fully warmed when the cooling fans come on at least once. Switch the ignition off.
3. Locate the service check connector and, if applicable, remove the cap. On 92-95 Preludes, the service connector is located under the middle of the dash. Use a jumper wire to connect the two terminals of the service connector. The two wires that are connected to this connector are Brown/White and Blue/White.
4. Following the manufacturers instructions, connect a timing light to the engine. The positive and negative leads connect to their corresponding battery terminals and the spark plug lead to No. 1 spark plug wire.
5. Make sure that all wires are clear of the cooling fan and hot exhuast manifold.
6. Set the parking brake. Start the engine. Check that the idle is set to specifications.
7. Point the timing light at the timing marks. The timing mark is located on the flywheel and can be viewed by removing the small rubber pice of the block.When the engine is idling, the red mark must align with the pointer. Some timing marks are indicated by 3 lines; the center one must be aligned with the pointer.
8. If necessary to adjust the timing, loosen the distributor hold-down bolts and/or nut and slowly rotate the distributor in requred direction while observing marks. To advance rotate distributor toward the firewall and rotate it towards the front of the car to retard it.
9. To complete the adjustment operation, tighten the hold-down bolt, taking care not to disturb the adjustment.
10. Switch the engine OFF. Reinstall the rubber plug in the timing window and remove the timing light. Remove the jumper wire.

 

wow...thats pretty good..didnt realize it took that much writing to do ignition timing lol.

 

thanks see if it's the prob..

 

Ohh and would you have any explaination on how to align tdc with the engine off. i think i might need to perform that job because i think the belt had slipped a teeth so might as well losen the adjust bolt and redo over to get in the right mark with tdc. And is there any mark on the pulley to align with the spocket up mark for tdc?? Thanks

 

Be for you lossen the bolts put it to tdc, there is an arrow on each cam gear (sproket) that will both point straight up to the sky and there is also an indension in the gears that will be on the gears like ()><() that will line up when it is in exact time.

 

but is will there be a tdc mark somewhere that i can align with the cams when i put back the belt??

 

the cam plates should have some holes in them, once they are lined up at tdc, the cams should have a little groove in it, use a skinny screwdriver to lock it in place

 

if there an picture of it..?? that shows all the details of tdc and grooves? It'll save words..

 

im having trouble finding a picture for you, just look on the cam plates, you will see little holes on it

 

explain how's a groove look likes..is that a mark or something. so seeing thru those hole on the cams you mean..

 

OK thell be the cam gear, on the gears there is a little indension on the gear facing you as there is on the other gear. Its like someone took a diegrinder with a 1/8 wide head and made the mark. OK line thoes up with the arrows pointing straight up thats on the gers and then get a thin screwdriver or a dial pin i belive they call it and lock the cams then put your belt on make sure evry thing lines up and you should be good to go. If that doesnt work go to your local autoparts store and get a Chilton manual, that will tell you every thing u need to know.