Two 89 Toyota Cressia ?'s - gas mileage and disabling the alarm

Setting the timing to more than the manual's specified amount can cause pinging so don't do it. Even if the car has electronic spark advance, ithe ECU will retard timing back do stop the pinging so nothing is gained.

Use the shop manual to diagnose whatever is setting off the alarm, or use an electrical wiring diagram to determine which pin in the alarm control box triggers the horn and back that pin out of the connector.

Holy Crap!!! You're getting that kind of mileage with an automatic?!?!?!

I consider myself lucky if I hit 22 with my Supra, same engine!!!

Course, if I kept my RIGHT FOOT OUT OF IT...!

Well, that's of course going by my trip odometer, brand new rebuilt engine, out of 700 or so miles probably 690 of them between 45 & 75 which I'm guessing is right in the optimal mileage zone.

Not sure if it's my imagination, but the low-end acceleration feels stronger to me than it did before my trip.

Ed

I am guessing the Supra and Cressida have different final gear ratios. Were the engines tuned the same? I would guess not.

NEW REBUILT ENGINE = the mileage should improve as the engine breaks in.

Using the trip odometer = Are you basing this on a one tank average? Keep a book on the mileage for at least a month. Single tank averages are notoriously inaccurate. I feel you need at least 3 consecutive tanks of gas to get a good average.

Probably because the engine is "breaking in." Rebuilt engine are more likely to need a long break in period that factory new engines. Rebuilders, even good ones, just won't match the OE Toyota tolerances and finishes on cylinders (well unless you had a race shop do the engine).

I still can't believe the Cressida will get that kind of mileage.

Ed

Cool! 40 mpg here I come!

;-)

Really? It's not even breathing hard at 120 per the speedo, lots of pedal left. I haven't run it that fast yet since the rebuild though. I'll have to re-check but I think it's spinning about 2800 at 75.

This was two tanks, both almost pure highway driving. I won't have that experience again for a while.

I used to get that on pure highway trips all the time.

Hey see if there is a fuse for a the alarm. And if there is pull it on out. Just my $0.02 Jamie

Oh and I would not count on 40 MPG on that old car. Maybe 30 if your lucky. Jamie

That's true for a GM, but in Japan the nationsal speed limit is 100...

KMh. Which is 62 MPH. Almost all my Toys have acheived their best economy at 70MPH.