86 IROC won't run right unless I unplugged the timing connector
#1
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Car: 86 IROC
Engine: 305 TPI
Transmission: 700r4
86 IROC won't run right unless I unplugged the timing connector
Hi, everyone, I'm having this problem with my IROC. When I start it, it barely has idle and if I give it gas, it just tries to cut out, like power is clicking on/off. Now if I unplug the timing wire, it runs fine. It has a great idle and every thing.
Stuff that has been replace recently are the ign module, plugs, wires, coil,
and after problem started
oil press switch, fuel pump and relay.
timing is set at factory spec.
Is it a bad ecm perhaps?
Stuff that has been replace recently are the ign module, plugs, wires, coil,
and after problem started
oil press switch, fuel pump and relay.
timing is set at factory spec.
Is it a bad ecm perhaps?
#2
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Car: 86 IROC
Engine: 305 TPI
Transmission: 700r4
Re: 86 IROC won't run right unless I unplugged the timing connector
Also, if I unplug the MAF, the car won't stay on at all; but ff I unplug the IAC or egr solenoid, there is no change; only removing the timing connector has a positive effect.
Last edited by raycer; 09-23-2010 at 12:06 PM. Reason: grammar
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Car: 89 FORMULA FIREBIRD, 86 CHEVY CAMARO
Engine: L98, LB9 RESPECTIVLY
Transmission: 700 R4 (BOTH)
Re: 86 IROC won't run right unless I unplugged the timing connector
any codes?
I'm thinking bad esc module...
I'm thinking bad esc module...
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Car: 86 IROC
Engine: 305 TPI
Transmission: 700r4
Re: 86 IROC won't run right unless I unplugged the timing connector
no codes and the check engine light behaves normal. I just replaced the pick up coil to no avail, but I did notice something odd. If I unplug the connector from the alternator, the car idles perfectly and then dies 10 seconds later.
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Car: 86 IROC
Engine: 305 TPI
Transmission: 700r4
Re: 86 IROC won't run right unless I unplugged the timing connector
ok, new esc, same problem.
someone mentioned a bad ground so I will check that.
Also my cts' plastic is broken but the connector/pins still are attached. I was going to change it but the cts is seized in there and I haven't been able to remove it.
someone mentioned a bad ground so I will check that.
Also my cts' plastic is broken but the connector/pins still are attached. I was going to change it but the cts is seized in there and I haven't been able to remove it.
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Car: LT4 C4, LT1 CE, 95' Dyno Air
Transmission: ZF S6-40, 4L60E, sprockets
Axle/Gears: 3.45, 3.07
Re: 86 IROC won't run right unless I unplugged the timing connector
I'm not sure if these cars are set up like this but.......you mentioned the oil pressure switch.......does the ECU have to see oil pressure in order to give the ignition and/or injectors the "go" signal? Possibly a weak connection or bad sensor?
#7
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Re: 86 IROC won't run right unless I unplugged the timing connector
Have you put a timing light on it? Check it with the connector plugged and unplugged.
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#8
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Car: 89 FORMULA FIREBIRD, 86 CHEVY CAMARO
Engine: L98, LB9 RESPECTIVLY
Transmission: 700 R4 (BOTH)
Re: 86 IROC won't run right unless I unplugged the timing connector
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Car: 86 IROC
Engine: 305 TPI
Transmission: 700r4
Re: 86 IROC won't run right unless I unplugged the timing connector
problem solved. $5 ground strap
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