OBD1 CODES CODE 21 Questions

I Have Fault Code 21, Fault Code 24 Nz, Fault Code 28, Fault Code 31 And Fault Code 59 What Do These Fault Codes Mean?

Getting One Code 21 Tps Voltage High. Tested The Tps With Voltmeter Across Blue And Black Wire And With Ignition On Throttle Closed Got Like...

It Is Straight Six Cylinder. Rwd Lack Of Power, Backfiring In The Exhaust. High Consumption Of Fuel. Had A Physical Check Of The...

I Have An Ongoing Propblem Wit An Error Code 21 For My 94 Jeep Cherokee Country. I Have Replaced The O2 Sensor 3 Times Replaced Relays...

I Recently Purchased A 1994 Honda Accord Lx, Shortly After Purchasing It, I Learned The Car Would Not Start Randomly. I Replaced The Ecu...

Engine Performance Problem 1988 Ford F150 V8 Two Wheel Drive Automatic 5.0 302 The Ford Is Stalling, Black Smoke On Start Up. Rough...

I've Had Problems With Valves Burning On This Engine In The Past. It Has 215,000 Miles And Recent Valve Job (15k Ago). Getting A Code 21...

I Have A Code 21 On A 95 Neon, Do You Know What This Is?

Will Not Start. Fuel Pump Was Replaced Then Battery Drained. Charged Battery And Then Theft Light Was Flashing. Had 2 New Keys Programmed To...

I Have A 1990 Pontiac Boniville With A Little Over 246000 Miles On It.it Has A 3800 V6 In It And The Codes Have Just Started Today.on The...