Ok so I have an 89 toyota with a 3.0 V6 5 speed and around 145k miles. Ive had the truck about 6 months or so and have done my fair share of replacing parts already. I did plugs, wires, fuel filter, new cold air intake, new magnaflow cat, new magnaflow muffler, changed all fluids and running lucas fuel treatment. Now for the problem.....yesterday I was cruising home and when I merged to get off the interstate I eased off the pedal....slight backfire....which I havent heard since I replaced the exhaust. Almost immediately the truck starts stuttering. Once I get to 2nd 3rd and 4th gear it bucks and stutters the whole time. When I got home I checked under the hood to find the the plastic clamps that came with my CAI were cracked and it was sucking in air so I replaced them with new rubber clamps. Drove it down the street and its still stuttering. Im stumped.....any help is much appreciated!
Maf sensor may have had taken a hit from the backfire if it burped thru the throttle body as well if its sluggish and unresponsive might be the Maf being unresponsive
have you disconnected the battery and reset the pcm since you fixed it from reading unmetered air? and CELs?
Im doing that now....I got a code 43 and 51. Ive done some reading but cant find any good info on either one. Any ideas anybody???
Code 43 No starter signal to the ecu Code 51 AC signal on; DL contact off (in trany shifter with diagnostic connector jumped)
