My dad had a 1984 and it was my first car I got to drive. I liked it. I opened up the hood and I read crossfire injection I thought it was the shit myself. I had a blast driving it at 14...

I love the way my '84 Crossfire runs. I find it easy to work on; all you have to do is change out some old parts to breathe new life into them. You're right about the vacuum; I changed all my vacuum hoses, which made a huge difference. I then swapped out the fuel pump to one from an '85 to get more pressure. I got an MSD HE ignition system, which made it come to life. I keep it tuned, and it runs well. I don't need the '84 to have loads of HPs; I just need it to run nice and crisp, which it does.

Just bought an 84 with the factory crossfire still on it. The car has managed to not only go 218k miles with it, but it also got me from Baltimore, MD all the way back home on the Western side of West Virginia. A 6 hour trip one way! It did spit and sputter, but with some crossfire adjustments and a tune up, I'm sure it'll be back to business as usual!

The only thing wrong with the crossfire was people that never owned one talking bad about them. And don't forget the coolant temp sensor on the front of the intake was one of the biggest problems

Good morning Anthony. Great video ! I have also heard folks cry and whine about the Crossfire system. I had a 1982 Corvette and for the years I had it I never had an issue. Mine ran great. I hope one day to have another '82. Thanks again my friend.

I had a 83 ta with the 305 cross fire. It ran really well, the other tbi engines just felt like it was starving for fuel, the cross fire ran way better

Just made me feel great about my purchase. Thank you, sir.

C3 Covette is the coolest looking Vette of all, and since they were caught in the low performance era they are relatively inexpensive. I am no mechanic, So I'm going to find a mechanic to help me track down a cream puff that I could bring to car shows and take out on weekends.

Thank you! Straight changed my mind about mine. Valid video

My 84 c4 corvette “works perfectly “ & still get 23 miles to the gallon!!!!

Thank you for this vid man 🙏

Great video!

Nice video. I've been looking for a c3 or a c4 for awhile, but theres so much criteria to narrow down. I like these early cars more, because they're the cheapest and most hated.

Hey Like you video. Glad some one Really interested on the C4 '84 vette. Question; One of the injector terminal flashes the other don't through noid test. Anything I should look into. Also a easy tool to check the fuel pressure?

Is it beneficial to cutting a hole in the fan shroud to allow more air to get into the engine department

Hits blunt every time he said you know and is it just me or dose he sound like tony from purgatony

my crossfire has been extremely reliable

thank you I will try the position sensor and I C valve

Hey what is wrong if you get it to start after using some engine starter and it starts but when you let off gas it dies if you know that would be awesome

Hello Anthony! Love my 84 corvette and everything you said is very true about the crossfire engine in the 84. I have one myself. I had some wiring replaced because of age. Have you ever had an issue we’re your digital dash and your headlights when on do a very small flicking at the same time? Not sure if it’s a wiring issue or maybe it’s time to check out the alternator.

What kind of vacuum pump do you use? If there is a leak in the vacuum lines that control the lights could that cause problems? My 1982 stalls out when I come to complete full stops I was told it might be my timing chain what do you think? Thanks for your video

Anthony I noticed in the video that above your Fan that you have a hole in the shroud did you cut that hole yourself and if so is it helping the car to get more cooler air circulating

Thanks

I have an ‘84 and my car won’t run because one of the injectors will not fire. Changed the injector itself and the ECM driver is good. Not sure what else to go to. Put a noid light on it and it seems like it should be fine. Any tips?

My 84 c4 corvette works perfectly & still get 23 miles to the gallon & with only 74,453.4 miles no it

I had 84.5 with this motor, and guys would call it "cross-f*cked" injection, but I had 0 problems with it. Now, the electrical and cooling were sh*t, but nothing with the injection.

Most problem with the cross fire engine is balance the carbs with a manometer the two carb must be balance to run right and the throttle senor must be at reading at .035 volts every that it.

Hey Anthony i got my 84 for a year now and it was running fine until recently when i changed the idle air control valves and the idle went too high (1500-1700) i tried to adjust by driving (believing ecm will auto adjust but no luck) i then put the old iac valves back in ( which are a bit longer than new ones) and the idle went down a bit but still running high at 1200 especially after engine warmed up. I thought the coolant temp sensor was the problem and i changed it but still idle goes high when engine warmed up and now throws code 14 and 15. The wiring at the cts seemed a bit messed up so maybe that’s why the codes..? I also don’t have o2 sensor and no cats (in dubai i registered it as classic car) and my fuel economy is terrible. Although it’s a crossfire engine My set up is a bit different as there is no air box, but each tbi has its own air filter. (You can have a look on my channel) I think most vacuum lines are sorted or capped off so don’t think the vacuum is a problem. I rebuilt both TBIs, new fuel pump new fuel filter and new coolant temp sensor. What do you think the high idle is caused by? any suggestions?

I’m about to buy an 84 vette with the CFI engine in it anything I should check for since it has a high mileage? It’s at 145k. I want to do an LS swap and add a turbo to it eventually but I need to fix it up cosmetically first it’s missing the toga and the right headlight.

My 1984 crossfire Corvette won't accelerate when fully warmed up. Stalls out when I accelerate. Any solutions. I already changed fuel pump and sending unit plus fuel filter, spark plugs and wires and oil change

Putting an Edelbrock cam, intake manifold, and sniper EFI on mine

I am having all sorts of issues with my crossfire. I love my vette but I wish I could actually drive it. I’ve pulled the engine and trans and currently have an LS in it I snatched from a junkyard but I would love to put the original engine back at some point

I have 1984 corvette 4+3 transmission, my knock sensor wire melted, I fixed that, now engine will turn, but won’t start. Car has been sitting for 4-5 months. Any idea on what to check for? I replaced spark module in distributor, and spark control module. Any help would be good. Thank you.

I have a c 4 84 and it won't run but a quarter of a mile real good then it will die restart and runs like crap any suggestions I would love to drive hee

will a vacuum leak cause a misfire when cold and it to steam out of the tail pipe smart idea on letting someone else take the hit on the price drop on the c8 lol

Imo the best thing you can do with a crossfire injection system is remove and swap it for a truck tbi system. All the wiring and connectors are the same. You just don't use one of the idle air controllers. The original system was a cobbled together mess.

Is there a possible way we could get in contact I really would need help with my engine.

Very Good!... #89 ✝ {9-7-2023}

Where are you getting the nomenclature for testing everything.

Lets discuss image stabilization :-)

Good old Cease Fire Injection 🔥

hello! Anthony I have a question I got my 84 running after changing the fuel pump and assembly twice the second time for some reason water got in to the fuel tank anyway I was changing the driver side window felt I forgot to disconnect the battery when I was removing the connectors around the door I heard clicking by the engine bay I replace the fuel relay and check the fuse it cranks the engine but it wont idle no fuel delivery I disconnect the battery overnight several times hoping that it will reboot the computer still the same there is a "check engine" sign "security" the vette starts and runs before that clicking.

Can someone tell me how much horsepower this engine makes?

Chrysler made their CrossRam work. This is still a wet intake, just computer controlled. Should work.

Hey man I have a red 1984 Corvette it's pretty old and I've started to work on it but I'm having a issue starting up and when it starts up it idles really high and when I got to adjust it the idle gets very low and then turns off any ideas on what I need or might haft to do

Great stuff and information but so Shakey it made me dizzy

The computer was the main problem with CFI. I know this because TBI had the same problem but less of the time.

Problem is you can’t get higher than 4000rpm from it if you have a modified engine you won’t get top performance

This guy definitely sounds like a used car salesman from the 80s in New York....😅

30hp is significant just saying.

I’m only 14 but I think I can manage it just need some help

4 minutes in waiting for you to get to the point holy shit man

It’s not that we don’t understand it… if it made any power we’d all have been experts on it. It’s a dog, a wet stinky dog

Plus they are worth far less then tune port

Zero information here

They really are junk, you can’t compare it to tune port that never breaks

Its a terrible system