take off

[joewee39]

hi guys my 94 rodeo3.2L is slow to take off. I changed the catalylic converter, o2 sensor, fuel filter, and spark plugs. someone said it may take a couple of days for computer to adjust but it's been 3 days. what else could it be?, and how can i get my speed back????

[rodeo02]

Two things to check: 1) Make sure your MAF sensor is clean & working 2) I would not run anything other than NGK plugs in this engine. I see from previous posts that you have had T-belt tensioner issues. Did you replace this and the belt? are you positive your valve timing is 100% correct? All these things will cause serious performance & economy issues + you will overheat & destroy your new cat & o2 sensor if you are running excessively rich.
G/luck
Joel

[joewee39]

thanks i will check the MAF sensor too see if it is working properly, and i put the rc champion plugs in the dealer suggested. are the plugs you suggested any better

[rodeo02]

NGK's are one of the better spark plugs available. Most Japenese engines come with these from the factory. Later isuzu's come with denso / nippon denso spark plugs which are long lasting as well- but harder to find. Some 'zu 3.2's came with champions early on, but isuzu stopped using them because of ignition issues. IMO- champs, autolites and bosch split-fires are junk for newer cars. Check that valve timing first, a cam sprocket off a tooth or two will cause the issues you are having.
G/luck
Joel