Question about 1988 Chevrolet Camaro

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88 Camaro z28- Timing the engine

Does anyone know what to do, in order to time a TPI 305?

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  • Anonymous Mar 06, 2009

    tuned port injection yes

  • Anonymous Mar 24, 2014

    Engine oil leak!!



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Is it actually TBI?

Posted on Jul 28, 2008


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1 Answer

My 1991 z28 convertable has a 305 tpi and it idles at about 2100 rpm's no matter if the car is cold or warm. in gear it idles above 1200 rpm's. What could be the problem? I have changed all plugs, wires,...

Hello: Check the idle air valve, Remove valve Have someone turn key on then 15 seconds later turn off, see if valve pintle moves. Check passage for carbon build up.

Apr 21, 2011 | 1991 Chevrolet Camaro

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91 camaro 305 tpi runs rough at idle sometimes stalls and has power loss

tune up-read your plugs and then check your timing. use timing light and double check with scan tool-most 91 305's were high outputs which
requires higher octane than regular (fuel grade revelatnt to compression ratio and altitude) you may want to check fuel pressure could be a clogged filter or bad pump.

Apr 15, 2010 | 1991 Chevrolet Camaro

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Does anyone know or have the timing specs for a 350 tpi

Not to be rude. But if you dont know what your doing, Don't **** around with your engine timing. It is very crucial that this is done properly. Messing up your engine timing can cause your pistons to possibly drive into your sparkplugs, causing engine failure, and possibly a blown motor.

Mar 18, 2010 | 1986 Chevrolet Camaro

1 Answer

87 IROC WITH A ZZ4 OUT OF A 91 Z28... fitted a

Fuel pressure? Do you hear the fuel pump running? Read the codes to see if ECM is still alive. Do you have spark at the plugs? Remember all motors need 3 things to run air, fuel, and fire at the right time.

Mar 16, 2010 | 1987 Chevrolet Camaro

1 Answer


no. if it is a tbi then you will need to set initial timing at 6 degrees before tdc and if it is a tpi then it needs to be 10 but i like it more on the 8 or less side. but by the book it is 10 degrees before tdc. also if you have the tpi there is the brown wire that needs to be un plugged (spoot connector) up at the firewall in the main harness on the pasanger side while setting timing. it stops the computer from advancing the timing so it can be set correctly.

please ask any more question you have i will be glad to help. i own 4 iroc-z28

Nov 28, 2009 | 1989 Chevrolet Camaro

1 Answer

I need a vacume hose diagram for a 92 z28 its free to join and has most diagrams you need

Sep 01, 2009 | 1992 Chevrolet Camaro

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What is the timing set at for a 1991 Camero 305 V8 ?

Try 0 degrees. It should state it on the radiator cover, but mine didn't. I tried 10 advance and it started real hard. I think you need to disconnect the single wire terminal near the distributor/coil that sticks out of your harness wrap before you set timing and reconnect it afterwards. That's what I recall from my TPI car and this TBI car seems to have the same electronics. Good luck.

Mar 08, 2009 | 1991 Chevrolet Camaro

1 Answer

Timing a 305 TPI

Did you change the timing or have the time belt/chain replaced?

Jul 19, 2008 | 1988 Chevrolet Camaro

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