Vicious 88 GTA

How can I check the voltage on my TPS...I usually adust it manually til I feel it is alright...it has worked so far... and what should I set my base timing at, also the distributor timing...I am planning to do a complete tune up on it again after I get the cat cut off and install a Hooker Aerochamber exhaust on it. also what should I gap the plugs to....and is there any suggestions that I should do? I have heard about this MAF burn off, what should I do to check if it is ok? I am also considering taking off the A.I.R. system, will it affect anything and how hard will it be? - AARON

Vader

Vicious,

And for a little background data:

1. Are you getting DTCs? (Error Codes?);
2. Is the A.I.R. system causing problems? Normally, they don't;
3. Is the cat causing a problem? (See above);
4. Do you really expect to gain anything from their removal?
5. If you're not getting error codes, is there some other reason you're concerned about the MAF?

Performing a complete tune up may solve a lot of the issues you may be having, although you really haven't listed any.

A complete tune up on your engine includes:

• Cooling system inspection;
• Clean or replace spark plugs;
• Ignition wire testing;
• Distributor cap/rotor (if you don't have the OptiSpark);
• PCV valve cleaning or replacement;
• Vacuum hose inspection;
• Air filter;
• Cleaning the throttle body and IAC;
• Adjusting mixture control and choke/pulloff/idle (carbed engines);
• Checking/setting TPS voltage;
• Check/adjust minimum air rate;
• Check/adjust timing;
• Code scan.

Once you get that taken care of, you may not want to sell the car, and may discover that the cat and air injection aren't a problem.