k.l.pruett

I have a 94 SI with an S motor 2.2 that was installed before i purchased it. I discovered the O2 sensor is in the unit but no electrical leed atttached to it? don't even see it or the question is where does it connect? So how does it it run with out this? also the fans for the radiator quit yesterday and I did locate the relay to operate them & will pick it up today , had the catalytic converter removed to gain a little more power , wonder what I will see as a result of this? The car runs good but I never had one of these so I don't know what to expect from it like Fuel mileage and do you run the hi octane or will it perform on the lower grades ? As you can tell I am very new but excited about this car , looking forward to your responses, and any helpful info to look out for . thanks K.L.

jlspec

If your able to, get rid of the S motor you have and try to get the H23 or H22A back in. Doing so your car will run the way it suppose too or better.

__________________
1995 Prelude Vtec, 1990 Celica Turbo All-Trac 1/8 mile 9.6 sec stock, 1993 Acura Integra LS-S bucket 31 mpg (going to sell pretty soon, three cars is too much)
Past cars:
1989 Supra Turbo 300+ HP Street legal (CA) sold for school money
1993 Acura Integra LS (IHE + Test Pipe) sold for school money

Kronn 98SH

Your first mistake. This could have been avoided with some basic research and a visual inspection by the purchaser. If this is true, they removed a 160hp DOHC H23A1 engine and replaced it with 131hp SOHC F22A1 engine.

Your second mistake. This could have been avoided with some basic research and a visual inspection by the purchaser. I strongly recommend you download the Helm's manual from the website listed at the bottom of this section. It will show you how/where to connect everything. It probably runs like pure **** without a working O2 sensor. You should also have a CEL (Check Engine Light).

Free downloadable Honda and Acura Factory Service HELMS Manuals

Use the same manual for advice on this subject.

Your third mistake. This could have been avoided with some basic research. The results will be a smellier exhaust fume, dirtier air for everyone around you, a dirtier bumper, a failure when trying to pass any kind of inspection, and an additional 0.24554985416whp.

There's really no way to guess the gas mileage accurately because there's no telling which transmission you have. You should expect approximately 25mpg ± 5mpg. The F22A1 engine calls for 87 octane fuel and I see very little point in adding an octane booster.

__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold

k.l.pruett

First of all thank you for the information I'm sure I am not the first second or third person to make a mistake. What I did accomplish was trading a 1990 Nissan Hard body PU plain 4 cylc 5 speed no ac/PS 149,000 miles ect. For a 94 honda prelude SI but as you have said with an S motor which is still worth about 3 times as much in dollars. The car surprisingly doe get 25 + MPG no check engine light runs very good maybe not how a Prelude is supposed to run but will get out of it's own way, doesn't have a dirty rear bumper from excessive fuel. If nothing else it is some thing to do some trading with for a new prelude or ? Thank you all for your information as I said I am new to the prelude world , from an out sider looking in appears like a cult type owner ship, which I fit right in I never had the normal cars and I do own a Yamaha venture royal which you get the same kind of responses from others when you have questions being new to that world . Glad to see I will fit right in with all of you . thank you again for all the information.

jlspec

Does your funds allow for the orginal or vtec motor to be swaped back in? If not then the S motor will have to do for now. I recomend not doing much with that motor but the regular maintance until you can save up for the two motor which I mention. As long as your engine is not burning oil and running clean you shouldn't notice the black bumper.

__________________
1995 Prelude Vtec, 1990 Celica Turbo All-Trac 1/8 mile 9.6 sec stock, 1993 Acura Integra LS-S bucket 31 mpg (going to sell pretty soon, three cars is too much)
Past cars:
1989 Supra Turbo 300+ HP Street legal (CA) sold for school money
1993 Acura Integra LS (IHE + Test Pipe) sold for school money

jacobusbd21

Your car will run fine with one O2 sensor. I've gotten 30+mpg with only one. Your CEL light won't necessarily come on, either.

Kronn 98SH

Are you under the impression he has more than one O2 sensor?

__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold