503Ryder

I have a 97 civic Lx 4dr Just did swap D16y7 like my last engine (legit comp tested engine) so im sure wire harness and all is good i replaced a s*** ton of fuses. My temp guage does not work, and soon as the car starts the engine gets hot FAST headers heat up, and radiator hoses get hot also and fan not kicking on. and of course CEL is on, and gives me random codes (7 long and 2 short,7 long 3 short...witch is Misfire LOL) and flashes on the srs light and not the cel light

EG FTW

iTrader: (4)

check the cel first then go from there...more info on what kind of car you have and what you swapped in etc. alot of people on here wont help you without the basic info just a heads up dude.

CEL FAQ

B20Boosted

Just because the light is on and coolant is hot, does that mnean theres an issue. You definitely need to know how hot and the gauge is the way to go. CEL's are your friend....sometimes.

503Ryder

I checked the CEL and its BS it was 7 long 2 short, 7 long 3 short...Misfire i believe (72 and 73). and its nor idling weird or nothing just overheating.

B20Boosted

Is the motor shutting off or coolant blowing from any holes?

503Ryder

no motor is not shutting off runs fine, all hoses are good, no leaks.

503Ryder

Also i was reading up on some things, whats the differenceon fan switch temp sensor and just temp sensor.... why would it not show anything on temp guage?

Dontoh

how do you know its over heating if your temp gauge is broken?

grumblemarc

iTrader: (4)

I was going to ask the same thing.

Wrona

.... he said he has a 99 LX four door and he swapped another D16y7 into it reading is ur friend

Dontoh

OP edited his post after eg ftw asked.. reading is your friend..

Wrona

how am i sopose to know that he edited that part in i was just saying that he put down the info didnt know that he edited that part in

Nickeg9Ej1

fix your miss fire and test your fan switch. missing will cause the header to get very hot i have seen cats glow white hot form running on 2 cylinders for 3 blocks.

Dontoh

you said it yourself, reading :p


I'm just playin with ya though, just thought it was kinda pointless and rude

anyway, OP find a working cluster, and see if its ACTUALLY overheating.. hows your thermostat? you said you just swapped it, is there enough coolant in it? has the coolant system been bleed?

Dontoh

really? any idea why?

503Ryder

@Nickeg9ej1 THERE IS NO MISFIRE. they were random codes...lol cuz idle sounds good.

How do i know its overheating if temp guage not working, well it feels like a sauna after having the engine one for only 2 seconds and builds up....the hoses on the radiator are hot as hell... plenty of coolant did all that.


I just got my tester out and tested the fan switch, guage temp, and the sensor for radiator all the wires are good....must be bad sensors?????? how can all sensors be bad i dont get it.

Nickeg9Ej1

only had 2 spark plug wires on a ef me and my buddy bought for just the body didnt want to go 20 miles for free wires so drove it to another buddys house right down the road to parked it. probably not the worst Ive done but up there

Slacker93eg

Unburned fuel collects in the cat and burns inside of it, causing it to glow. This can also destroy the cat or clog it and you won't be able to start your car if it's bad enough.

It sounds to me like your wiring is screwed. Or maybe wrong year ECU or something? The part where you say it blinks on the SRS not the CEL made me think of that right away

503Ryder

No not wrong ecu, because my last engine ran fine...and i put in exact same engine. as for wiring everything is working i tested most of the wires. like the wires for the tem guage sensor is good but temp guage doesnt work...bad sensor? same goes for fan switch sensor.

Slacker93eg

Not sure what the plugs look like but are you sure all the plugs are going to the right sensors? Maybe your cluster took a ****? Just throwing out ideas

EG FTW

iTrader: (4)

sorry you werent here for the begginning of the thread, but he didn't specify what car he had or what swap he had in it. hence why i stated that. he edited his post if YOU were reading... just to keep you in the know

503Ryder

cluster seems fine, gas guage works, mph, rpms srs oil cel all work, not showin temp guage and ***** overheating...i was happy when i did the swap until this happend. **** sucks

hyperblu

Well, how about we ask some very simple questions and NOT get indirect answers shall we?

1. Did the temp guage in the cluster work BEFORE the swap? Yes/no?
2. Did you burp the coolant system of all air? Yes/No?
3. Is your radiator fan kicking on? Yes/No?

hyperblu

Well, how about we ask some very simple questions and NOT get indirect answers shall we?

1. Did the temp guage in the cluster work BEFORE the swap? Yes/no?
2. Did you burp the coolant system of all air? Yes/No?
3. Have you checked compression? Yes/No?

if your engine coolant sensor is not working, it cannot tell the ecu to kick on the rad fan... Jump the fan to the battery and see if it still get hot...

503Ryder

1. yes temp guage worked perceftly, and when i had the tester on it it was rising up to H and i took it off before i got it stuck or whatever.

2.yes burped it put it in the head all that(done this many times)

3.compression is tested at the factory where i got it with a 30 day warranty 160comp(they cant sell without comp test). i drove it around felt good no idle problems just this lil delima with guage and overheating.