Question about 1995 Chevrolet Corvette
I have spent over $4,000.00 on repairs and the problem continues. The throttle body as replaced along with the sensor. The ECM was replaced. All the spark plug wires have been replaced and new spark plugs installed. The fuel pump has been checked and the filter. Now the dealership is suggesting that it may be the solenoid that controls the OD for the transmission. Does not make sense to me. It seems to me that it is a fuel problem, perhaps injectors???
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Posted on Jan 02, 2017
Please go to the crossfire injection forum to get some straight answers to the 82 corvette CFI system and how to troubleshoot it properly. There's a lot of misinformation given here, so much so, I don't know where to begin.
One thing is, the 82 corvette CFI does NOT have a MassAir Flow sensor system, it uses MAP and O2 mostly. The CTS sends a signal to the ECM telling it what the temp of the motor is and in turn the ECM controls the amount of fuel being dumped. On the older (orignal) CTS sensors, they have one wire and takes its ground from the threads. If any coorosion takes place, usually the CTS will report a cold engine and request lots of fuel.
To repair this issue, install one of the newer style CTS sensors that have two wires, one for signal and the other is ground.
Fuel pressure and vacuum leaks on any CFI motor play key roles. Set the FP to 14-15psi measured inbetween the TBs. The regulator is located on the rear TB and must be slightly moded to make it adjustable and can be done in a few minutes.
Posted on Mar 07, 2009
Check your fuel pressure, and or injectors. You may have too much fuel getting into the engine causing it to burn rich and overheat the converters.
Posted on Apr 26, 2009
Have you heard of Noid lights? You unplug the fuel injector and plug these in and they will light up if the injector is getting power. This might give you a better hint. There are also lights that go inbetween the spark plug and wire. Between these two items you may be able to narrow down the problem to a specific system. I believe that your car has a coil pack. Some of these engines have problems with the crank trigger. I believe it is located on the back side of the motor. If you decide to change it, be careful. I have heard of them breaking into two pieces and becoming a big problem.
Posted on Jul 21, 2009
from the sounds of it its going to be one of 3 things 1) the injector is bad or 2) there is no power getting to the injector 3) bad relay switch.
1) to find out if the injector is good. pull the injector out and with some wire ground one side and touch the other side to your battery, every time you tap the wire to the bat you should here the injector click..
2) if injector is good get a test light and test to see if power is coming out of the wires that go to injector( on some vehicles you have to have the motor turning over befor power is sent through wire, so have someone turn the key while you check the wires with test light)
Posted on Aug 15, 2009
Testimonial: "Thanks for the quick response and advice. I am on the hunt for the problem and you helped me close some doors to narrow my search."
you have a fuel pump relay that may be defective, or fuel pump or maybe the crank position sensor,a cam position sensor.the best thing is to have a scan performed with an obd1 scanner and you will know where to start the repair.
Posted on Dec 05, 2011
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