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-   -   Replaced radiator... now it's not running right... HELP (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/replaced-radiator-now-its-not-running-right-help-745819/)

TMadlem84 04-11-08 10:23 AM

Best I got is a piston compression tester...

But 92psi front, 92psi rear...

Any suggestions? (Aside from saving up some $$ & letting Chris @ Banzai figure it out) :)

TMadlem84 04-11-08 11:00 AM

& the smoke clears up once I get the car to unflood... but it floods like a mother...

Dudemaaanownsanrx7 04-11-08 09:47 PM

the main thing on the compression test is to verify you have 3 even bounces (on the gauge) on each rotor timed the same. Bounce... bounce... bounce... instead of bounce... bounce...................bounce.

Are you sure the map sensor is working properly? did you check the voltages? And when u say the car falls flat on its face does the boost fall off? Maybe the 2nd turbo isnt coming online, or somthing with the turbo system. are you sure the map sensor is connected to the right spot? Leaking injectors causing it to be rich? Not getting spark on all plugs? There is lots of things to check.

jkstill 04-11-08 11:34 PM


Originally Posted by grimple1 (Post 8066205)
has anyone ever actually blown the hose off a map sensor? everyone always says that but I've never actually heard/seen of anyone doing it....

Yes, I have. It now has a good and tight tie wrap on it.

TMadlem84 04-11-08 11:57 PM

The compression does did do 3 even bounces... so I'm good there.

I was wondering if the MAP sensor itself could have failed... maybe that's why the hose blew off? because even with the hose connected, it acts as if it's not connected.

I am not able to get the RPMs high enough with high enough PSI on the turbos to get the 2nd turbo to come online.

grimple1 04-12-08 05:11 AM

i'm at a loss then. I was wondering if it wasn't a coincidence that it jsut happed to pop then.... but if the comp test is good then it's definately not that..

GL!

dgeesaman 04-12-08 05:37 AM

I have no idea why, but my injectors started dumping fuel and flooding immediately after I started the engine with the tb coolant hose detached. I sprayed some coolant around the brake booster area and shut off the engine in a couple of seconds.

From that point on, I had problems starting/running that were only solved by replacing my injectors with freshly cleaned ones. Your symptoms sure sound like wonky injectors.

Dave

TMadlem84 04-12-08 07:25 AM

Where do I buy new injectors? Which ones do I get?

Dudemaaanownsanrx7 04-12-08 10:08 AM

have you checked to make sure you have spark at all 4 plugs? it does sound like you could have leaking injectors or something. You can test the map sensor to see if its failed or not. Have you tried pulling any codes from the ECU?

TMadlem84 04-13-08 11:25 AM

I'm getting the diagnosis computer from my dad to run checks on that.

I'm going to buy new plugs to rule that out.

& how do you test the map sensor?

& is there a way to test an injector without just replacing them? How much do injectors cost?

WaLieN 04-13-08 02:07 PM


Originally Posted by grimple1 (Post 8066205)
has anyone ever actually blown the hose off a map sensor? everyone always says that but I've never actually heard/seen of anyone doing it....

I have. The nipple on the MAP isn't very large nor snug, even with a clamp.

TMadlem84 05-11-08 12:50 PM

Well I finally pulled some stuff off, & saw that SEVERAL of my vaccum lines were either snapped in half, or snapped off at the nipple. The car has 125k miles... & Chris @ Banzai commented how brittle all my vaccum lines were when I took my car in last year. So something must have happened which caused a higher-than-normal pressure around my UIM, because that's were hoses either popped off or broke off. Since all the lines are in such bad shape, I think I'll just be taking it down to Banzai for a full vaccum line job (yeah, I know you can do it yourself... but it's a LOT of lines to run... I'd rather just have an expert do it... so I don't have to troubleshoot missed connections or worry about missing a line).

But I would assume that's my problem, cuz the car is running VERY rich... which I would again assume would be caused from broken/leaking vaccum lines...

Relatively safe assumption?

Dudemaaanownsanrx7 05-11-08 01:38 PM

Really the only line that would cause it to be really rich is the one to the map sensor. All the other hoses are mainly for the turbo and emissions systems.


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